332354 + Interview Questions in Secondary School in Math

1.	Bo is buying a board game that usually costs B dollars. The game is on sale, and the price has been reduced by 18%. Which of the following expressions could represent how much Bo pays for the game?0.82 B1.18 BB-0.18B-18B-0.18B
Answer» Step-by-step explanation: 0.82B is the same as TAKING 82% of B. We would do this because 100% of the price - 18% discount = 82%; 82% = 82/100 = 0.82.

1.

Bo is buying a board game that usually costs B dollars. The game is on sale, and the price has been reduced by 18%. Which of the following expressions could represent how much Bo pays for the game?0.82 B1.18 BB-0.18B-18B-0.18B

Answer»

Step-by-step explanation:

0.82B is the same as TAKING 82% of B. We would do this because 100% of the price - 18% discount = 82%; 82% = 82/100 = 0.82.

Discussion

2.	Hey guys, can you'll pls check whether my answer is correct or not?.Q. Sides AB and AC and median AD of a ∆ABC are respectively proportional to sides PQ and PR and median PM of ∆PQR. Prove that ∆ABC ~ ∆PQR.
Answer» Answer: PERFECT answer dude Step-by-step explanation: PLEASE mark me brainliest and FOLLOW

2.

Hey guys, can you'll pls check whether my answer is correct or not?.Q. Sides AB and AC and median AD of a ∆ABC are respectively proportional to sides PQ and PR and median PM of ∆PQR. Prove that ∆ABC ~ ∆PQR.

Answer»

Answer:

PERFECT answer dude

Step-by-step explanation:

PLEASE mark me brainliest and FOLLOW

Discussion

3.	A path 1 m wide is built inside a square park of side 30 m along its sides. Find the area of the path.Calculate the cost of constructing the path at the rate of 70
Answer» ANSWER: side of SQUARE PARK = 30m and path is 1 m wide so, the side of whole park with path is 31m so, the AREA of whole park with path is = side × side. =. 31×31 =961 m^2 area of park = 30×30 =900 m^2 area of path = area of park with path - area of path = 961 - 900 = 61 m^2 the cost of constructing path is 70 rs/m^2 so, the total cost for construction of path is = 70×61 =4270 rs THANKS

3.

A path 1 m wide is built inside a square park of side 30 m along its sides. Find the area of the path.Calculate the cost of constructing the path at the rate of 70

Answer»

ANSWER:

side of SQUARE PARK = 30m

and path is 1 m wide

so,

the side of whole park with path is 31m

so, the AREA of whole park with path is =

side × side. =. 31×31

=961 m^2

area of park = 30×30

=900 m^2

area of path = area of park with path - area of path

= 961 - 900

= 61 m^2

the cost of constructing path is 70 rs/m^2

so,

the total cost for construction of path is

= 70×61

=4270 rs

THANKS

Discussion

4.	3) आकृतीत, बिंदू A हा एकमेकांना बाहेरून स्पर्श करणाऱ्या वर्तुळांचा सामाईकबिंदू आहे. रेषा / ही दोन्ही वर्तुळांची स्पर्शिका आहे व ती Ba C या बिंदूंमध्येवर्तुळांना स्पर्श करते. रेषा m ही बिंदूA मधून जाणारी सामाईक स्पर्शिकाBC ला D मध्ये छेदते. सिद्ध करा :(i) ZBAC = 90°(ii) बिंदू D हा रेख BC चा मध्यबिंदू आहे.
Answer» Step-by-step explanation: Showing RESULTS for state four factors on which the strength of magnetic field solenoid depends Search instead for state four factors on which the strength of magnetic FIELDS solinod depends हिंदी में खोजें चार कारकों राज्य है जिस पर चुंबकीय क्षेत्र solenoid की ताकत पर निर्भर करता है Search Results Featured SNIPPET from the web 1. The strength of current in the solenoid: Larger the current passed through solenoid, stronger will be the magnetic field produced. 2. The number of turns in the solenoid: Larger the number of turns in the solenoid, greater will be the magnetic field produced.

4.

3) आकृतीत, बिंदू A हा एकमेकांना बाहेरून स्पर्श करणाऱ्या वर्तुळांचा सामाईकबिंदू आहे. रेषा / ही दोन्ही वर्तुळांची स्पर्शिका आहे व ती Ba C या बिंदूंमध्येवर्तुळांना स्पर्श करते. रेषा m ही बिंदूA मधून जाणारी सामाईक स्पर्शिकाBC ला D मध्ये छेदते. सिद्ध करा :(i) ZBAC = 90°(ii) बिंदू D हा रेख BC चा मध्यबिंदू आहे.

Answer»

Step-by-step explanation:

Showing RESULTS for state four factors on which the strength of magnetic field solenoid depends

Search instead for state four factors on which the strength of magnetic FIELDS solinod depends

हिंदी में खोजें

चार कारकों राज्य है जिस पर चुंबकीय क्षेत्र solenoid की ताकत पर निर्भर करता है

Search Results

Featured SNIPPET from the web

1. The strength of current in the solenoid: Larger the current passed through solenoid, stronger will be the magnetic field produced. 2. The number of turns in the solenoid: Larger the number of turns in the solenoid, greater will be the magnetic field produced.

Discussion

5.	5. Let= lim ௫→గ/ଶ(sin )୲ୟ୬మ ௫and = lim௫→(గ/ଶ)ି(tan )ୱ୧୬(ଶ௫). Find the values of and M and show that ଶ = . Prove that coshିଵ = ln൫ + √ଶ − 1 ൯ , ≥ 1. Find the centre, vertices, foci and ends of minor axis of the ellipse 3ଶ + 4ଶ − 30 − 8 + 67 = 0.
Answer» ANSWER: OH no too hard Step-by-step EXPLANATION: which CLASS are you READING

5.

5. Let= lim ௫→గ/ଶ(sin )୲ୟ୬మ ௫and = lim௫→(గ/ଶ)ି(tan )ୱ୧୬(ଶ௫). Find the values of and M and show that ଶ = . Prove that coshିଵ = ln൫ + √ଶ − 1 ൯ , ≥ 1. Find the centre, vertices, foci and ends of minor axis of the ellipse 3ଶ + 4ଶ − 30 − 8 + 67 = 0.

Answer»

ANSWER:

OH no too hard

Step-by-step EXPLANATION:

which CLASS are you READING

Discussion

6.	501प्र4VIX + 999खालीलपैकी कोणतेही दोन उपप्रश्न सोडवा.81) जर केळ्यांचा भाव प्रति डझन 1 ने वाढवला, तर 840 ना पूर्वीपेक्षा दोन डझन केळी कमी मिळतात, तर सुरूवातीचा केळ्यांचाप्रति डझन भाव काढा.
Answer» Answer:645 Step-by-step EXPLANATION:

6.

501प्र4VIX + 999खालीलपैकी कोणतेही दोन उपप्रश्न सोडवा.81) जर केळ्यांचा भाव प्रति डझन 1 ने वाढवला, तर 840 ना पूर्वीपेक्षा दोन डझन केळी कमी मिळतात, तर सुरूवातीचा केळ्यांचाप्रति डझन भाव काढा.

Answer»

Answer:645

Step-by-step EXPLANATION:

Discussion

7.	Sol.& Figure shows number of challans in degree (the pie chart in the compaign conducted bythe central Govt. If total vehicles are 72,00,000. Find the number of challans issured in1Rajasthan.West Bengal 9Bihar 45Uttar Pradesh 36extra104.4AndhraMadhyaPradesh 10.8Pradesh 32.4Tamilnadu 18Rajasthan 21.6Gujarat 7.2Maharashtra 10.8/Odisha 18Punjab 28.8 Delhi 10.3Haryana 7.2
Answer» Answer: Employment 11 14 17 Total 1 18 56 89 163 0 13 16 8 37 Total 31 72 97 200 What is the VARIANCE of employment? Give your answer to TWO decimal places.

7.

Sol.& Figure shows number of challans in degree (the pie chart in the compaign conducted bythe central Govt. If total vehicles are 72,00,000. Find the number of challans issured in1Rajasthan.West Bengal 9Bihar 45Uttar Pradesh 36extra104.4AndhraMadhyaPradesh 10.8Pradesh 32.4Tamilnadu 18Rajasthan 21.6Gujarat 7.2Maharashtra 10.8/Odisha 18Punjab 28.8 Delhi 10.3Haryana 7.2

Answer»

Answer:

Employment 11 14 17 Total 1 18 56 89 163 0 13 16 8 37 Total 31 72 97 200 What is the VARIANCE of employment? Give your answer to TWO decimal places.

Discussion

8.	किसी विद्यालय ने फीस के रूप में छात्रों से 2034 रुपए एकत्र किए । यदि प्रत्येक छात्र ने उतनेही पैसे दिए जितनी विद्यालय में छात्रों की संख्या थी, तो विद्यालय में कुल कितने छात्र थे?
Answer» ANSWER: hsizoznzbxidoidndbdjdjdhhdhd Step-by-step EXPLANATION: siid9e9dudhdghdidodjdhd

8.

किसी विद्यालय ने फीस के रूप में छात्रों से 2034 रुपए एकत्र किए । यदि प्रत्येक छात्र ने उतनेही पैसे दिए जितनी विद्यालय में छात्रों की संख्या थी, तो विद्यालय में कुल कितने छात्र थे?

Answer»

ANSWER:

hsizoznzbxidoidndbdjdjdhhdhd

Step-by-step EXPLANATION:

siid9e9dudhdghdidodjdhd

Discussion

9.	4. Write the tens value in the numbers:tens1) 230-------tens2) 524-------tens3) 627---------tens4) 381-------tens
Answer» ANSWER: 1-3,2-2,3-2,4-8 I THINK it's CORRECT answer

9.

4. Write the tens value in the numbers:tens1) 230-------tens2) 524-------tens3) 627---------tens4) 381-------tens

Answer»

ANSWER:

1-3,2-2,3-2,4-8 I THINK it's CORRECT answer

Discussion

10.	छत पर एक पानी की टंकी बनाई गई है जिसकी चोड़ाई ऊपर से 8 मीटर और तल से 6 मीटर है यदि इस टंकी की लम्बाई ऊपर नीचे एक समान 7 मीटर है और गहराई 4 मीटर है तो टंकी की क्षमता होगी? (a) 196 घन मी. (b) 216 घन मी. (c) 324 घन मी. (d) 52 घन मी.
Answer» ANSWER:- 196 ghan me (a) its the CORRECT answer...

10.

छत पर एक पानी की टंकी बनाई गई है जिसकी चोड़ाई ऊपर से 8 मीटर और तल से 6 मीटर है यदि इस टंकी की लम्बाई ऊपर नीचे एक समान 7 मीटर है और गहराई 4 मीटर है तो टंकी की क्षमता होगी? (a) 196 घन मी. (b) 216 घन मी. (c) 324 घन मी. (d) 52 घन मी.

Answer»

ANSWER:-

196 ghan me (a)

its the CORRECT answer...

Discussion

11.	एक खिलौने बनाने वाली कंपनी औसतन एक दिन में1550 खिलौने बना लेती है। यदि फरवरी मास में कंपनी24 दिन खुली हो तो कुल कितने खिलौने बने ? On anaverage, a toy making company makes 1550toys in a day. If the company was open for 24days in the month of February, then how manytoys are made in total?
Answer» ANSWER: wasd Step-by-step EXPLANATION:

11.

एक खिलौने बनाने वाली कंपनी औसतन एक दिन में1550 खिलौने बना लेती है। यदि फरवरी मास में कंपनी24 दिन खुली हो तो कुल कितने खिलौने बने ? On anaverage, a toy making company makes 1550toys in a day. If the company was open for 24days in the month of February, then how manytoys are made in total?

Answer»

ANSWER:

wasd

Step-by-step EXPLANATION:

Discussion

12.	Limit x tends to a root of a+ 2 x minus root 3 X by root over a + 3 x minus root 2 x a)1b)2c)root2d)2÷root3I want process to this question
Answer» ANSWER: v.xgxlyddlyxmhghdhdlysvzb jcfnf

12.

Limit x tends to a root of a+ 2 x minus root 3 X by root over a + 3 x minus root 2 x a)1b)2c)root2d)2÷root3I want process to this question

Answer»

ANSWER:

v.xgxlyddlyxmhghdhdlysvzb jcfnf

Discussion

13.	समचतुष्फलक की प्रत्येक कोर 4.2 से.मी. है उसका आयतन घन से.मी. में होगा? (a) 6.174√2 (b) 4.16√3 (c) 18.52√2 (d) 19.15√3
Answer» ANSWER: भारतात दक्षिन कडूिन उत्तरेकडे जाना रे तापमात घट होते. Step-by-step EXPLANATION: r=====भारतात दक्षिन कडूिन उत्तरेकडे जाना रे तापमात घट होते.

13.

समचतुष्फलक की प्रत्येक कोर 4.2 से.मी. है उसका आयतन घन से.मी. में होगा? (a) 6.174√2 (b) 4.16√3 (c) 18.52√2 (d) 19.15√3

Answer»

ANSWER:

भारतात दक्षिन कडूिन उत्तरेकडे जाना रे तापमात घट होते.

Step-by-step EXPLANATION:

r=====भारतात दक्षिन कडूिन उत्तरेकडे जाना रे तापमात घट होते.

Discussion

14.	Good wala morning sabko➽➽➽Have a fantastic day ahead..Given 15 cot A =8,find sin A&secA
Answer» Answer: good MORNING my DEAR friend. Step-by-step explanation: ESKA answer upper paper me hai.

14.

Good wala morning sabko➽➽➽Have a fantastic day ahead..Given 15 cot A =8,find sin A&secA

Answer»

Answer:

good MORNING my DEAR friend.

Step-by-step explanation:

ESKA answer upper paper me hai.

Discussion

15.	Example 8 : Show that 1.272727... = 1.27 can be expressed in the form whereрqand q are integers and q +0.
Answer» Answer: 1.272727..= $\frac{126}{99}$ Step-by-step explanation: Concept: A NUMBER of the form p/Q , where p and q are integers and q not EQUAL to zero is called rational number. Any rational number can be written as a terminating decimal expansion or non-terminating decimal expansion. Let X=1.272727272727. (1) MULTIPLY both sides by 100 100x=127.272727. .(2) subtract (1) from (2) 100x - x = 126 99x = 126 $x=\frac{126}{99}$

15.

Example 8 : Show that 1.272727... = 1.27 can be expressed in the form whereрqand q are integers and q +0.

Answer»

Answer:

1.272727..=

$\frac{126}{99}$

Step-by-step explanation:

Concept:

A NUMBER of the form p/Q , where p and q are integers and q not EQUAL to zero is called rational number.

Any rational number can be written as

a terminating decimal expansion or non-terminating decimal expansion.

Let

X=1.272727272727. (1)

MULTIPLY both sides by 100

100x=127.272727. .(2)

subtract (1) from (2)

100x - x = 126

99x = 126

$x=\frac{126}{99}$

Discussion

16.	1. Write the date on which you were born.2. Multiply it with 4 and add 13 to it.3. Multiply it with 24 and subtract 200.4. To the above result, add the month in which you were born.5. Multiply with 2, subtract 40, then multiply it with 50 and add last 2 digits ofthe year you were born.6. Subtract 10500 from the result and you will get your date of birth.Is it not Thrilling !!!
Answer» Answer: YES i GOT it correct it was very MUCH helpful

16.

1. Write the date on which you were born.2. Multiply it with 4 and add 13 to it.3. Multiply it with 24 and subtract 200.4. To the above result, add the month in which you were born.5. Multiply with 2, subtract 40, then multiply it with 50 and add last 2 digits ofthe year you were born.6. Subtract 10500 from the result and you will get your date of birth.Is it not Thrilling !!!

Answer»

Answer:

YES i GOT it correct it was very MUCH helpful

Discussion

17.	Ne centre of the circle with AC = 24 cm, AB = 7 cm and ZEABDLCAB 90°- angle sublended by diam
Answer» Answer: EMPLOYMENT 11 14 17 Total 1 18 56 89 163 0 13 16 8 37 Total 31 72 97 200 What is the variance of employment? Give your answer to two decimal places.

17.

Ne centre of the circle with AC = 24 cm, AB = 7 cm and ZEABDLCAB 90°- angle sublended by diam

Answer»

Answer:

EMPLOYMENT 11 14 17 Total 1 18 56 89 163 0 13 16 8 37 Total 31 72 97 200 What is the variance of employment? Give your answer to two decimal places.

Discussion

18.	4 In AABC Ray BD bisects LABC and Ray CE bisects LACB.If seg AB:seg AC then prove that ED \|\| BC without using angle bisector theorm .
Answer» Step-by-step EXPLANATION: !ZMZ!zlzlzkqmmzjakmz!?K jnxnisx

18.

4 In AABC Ray BD bisects LABC and Ray CE bisects LACB.If seg AB:seg AC then prove that ED || BC without using angle bisector theorm .

Answer»

Step-by-step EXPLANATION:

!ZMZ!zlzlzkqmmzjakmz!?K jnxnisx

Discussion

19.	What is the current generation of compute?✎﹏﹏﹏﹏﹏﹏﹏﹏﹏﹏﹏Achha lo_ve mea age nahi dekhi jatiye baat ek bar Aapne family wale ko bta doo kassam se tumhara haddi tood ke hath mea de dege wo
Answer» thanks u yaar BATANE kr sach me MEKO NHI PATA tha btw FRIEND bnoge?

19.

What is the current generation of compute?✎﹏﹏﹏﹏﹏﹏﹏﹏﹏﹏﹏Achha lo_ve mea age nahi dekhi jatiye baat ek bar Aapne family wale ko bta doo kassam se tumhara haddi tood ke hath mea de dege wo

Answer»

thanks u yaar BATANE kr

sach me MEKO NHI PATA tha btw

FRIEND bnoge?

Discussion

20.	37. The cost of 2 kg oranges istimes the2of 1 kg of mangoes. If a man purchased4 kg of oranges and 2 kg of mangoes forR 250, then find the cost of orangos per kgand the cost of mangoes perkg
Answer» Answer: 1kg of mangoes=62.5kg Step-by-step EXPLANATION: MARK as BRAINLIEST PLEASE

20.

37. The cost of 2 kg oranges istimes the2of 1 kg of mangoes. If a man purchased4 kg of oranges and 2 kg of mangoes forR 250, then find the cost of orangos per kgand the cost of mangoes perkg

Answer»

Answer:

1kg of mangoes=62.5kg

Step-by-step EXPLANATION:

MARK as BRAINLIEST PLEASE

Discussion

21.	Ita and are the zeros of the polynomial f(x)=x2-5x + k such that a- B =1, , find the value of k
Answer» ANSWER: k=6 Step-by-step EXPLANATION: I HOPE you UNDERSTAND this is answer

21.

Ita and are the zeros of the polynomial f(x)=x2-5x + k such that a- B =1, , find the value of k

Answer»

ANSWER:

k=6

Step-by-step EXPLANATION:

I HOPE you UNDERSTAND this is answer

Discussion

22.	Find the area of the shaded part.here, the sides of the square are 20 cm each.so the radius of the arcs drawn inside the square are 20 cm.hence find the area.
Answer» Answer: area of shaded REGION 344cmsquare. HOPE IT WILL HELP YOU. Step-by-step explanation: 4×AREA OF SQUARE - 4×AREA OF QUADRANT =(4×(20)^2-4×1/4 × π 20×20) CM square. =(4×400-1×3.14×400)cm square. = (1600-314×4)cm square. =(1600-1256)cm square. =344 cm square. *THANKS*.

22.

Find the area of the shaded part.here, the sides of the square are 20 cm each.so the radius of the arcs drawn inside the square are 20 cm.hence find the area.

Answer»

Answer:

area of shaded REGION 344cmsquare.

HOPE IT WILL HELP YOU.

Step-by-step explanation:

4×AREA OF SQUARE - 4×AREA OF QUADRANT

=(4×(20)^2-4×1/4 × π 20×20) CM square.

=(4×400-1×3.14×400)cm square.

= (1600-314×4)cm square.

=(1600-1256)cm square.

=344 cm square.

THANKS.

Discussion

23.	वह छोटी-सी-छोटी संख्या ज्ञात करो जिससे 9048 को भाग देने पर वह परिपूर्ण वर्ग बन जाएइस प्रकार प्राप्त परिपूर्ण वर्ग का वर्गमूल भी गियात करे
Answer» ANSWER: 2 is the answer OK HOPE it HELPS

23.

वह छोटी-सी-छोटी संख्या ज्ञात करो जिससे 9048 को भाग देने पर वह परिपूर्ण वर्ग बन जाएइस प्रकार प्राप्त परिपूर्ण वर्ग का वर्गमूल भी गियात करे

Answer»

ANSWER:

2 is the answer OK HOPE it HELPS

Discussion

24.	What is the answer 110+__+24x12=250㏒㏑
Answer» ANSWER: 9.66 or 29/3 Step-by-step EXPLANATION: LET the UNKNOWN NUMBER be z 110+z+24×12=250 z+24×12=250-110 = 140 z×12=140-24 = 116 12z=116 z=116/12 z=29/3 =9.66

24.

What is the answer 110+__+24x12=250㏒㏑

Answer»

ANSWER:

9.66 or 29/3

Step-by-step EXPLANATION:

LET the UNKNOWN NUMBER be z

110+z+24×12=250

z+24×12=250-110

= 140

z×12=140-24

= 116

12z=116

z=116/12

z=29/3

=9.66

Discussion

25.	5. Which words make this statement true?80,635_80,636is greater than b. is less thanC. is equal to
Answer» ANSWER: B. is LESS than Step-by-step EXPLANATION: as 80,635 is SMALLER than 80,636.

25.

5. Which words make this statement true?80,635_80,636is greater than b. is less thanC. is equal to

Answer»

ANSWER:

B. is LESS than

Step-by-step EXPLANATION:

as 80,635 is SMALLER than 80,636.

Discussion

26.	1) Two circles with radii 3.5 cm and 2.5 cm touch each other internally. Find the distance between their centres.here the distance between the centres of two circles 3.5-2.5=1but as the smaller circle is inside the bigger circle the distance between the should be greater than smaller circle's radius
Answer» ANSWER 1 HOGA mindly QUESTION

26.

1) Two circles with radii 3.5 cm and 2.5 cm touch each other internally. Find the distance between their centres.here the distance between the centres of two circles 3.5-2.5=1but as the smaller circle is inside the bigger circle the distance between the should be greater than smaller circle's radius

Answer»

ANSWER 1 HOGA

mindly QUESTION

Discussion

27.	A two digit number as a times the sumof the digits It is also equal to thetheproduct of the digital find number
Answer» AnswerPlssssss helpssssssss Step-by-step explanatioesnauda y

27.

A two digit number as a times the sumof the digits It is also equal to thetheproduct of the digital find number

Answer»

AnswerPlssssss helpssssssss

Step-by-step explanatioesnauda y

Discussion

28.	Eter conteryeoc/b. The intensity of reverberation isQueblo higher in a closed and empty house.We cannot hear the echo producedin a classroomquestions inq
Answer» WALA akun ALAM ka Step-by-step EXPLANATION: sorrrrrrrrrrrrr

28.

Eter conteryeoc/b. The intensity of reverberation isQueblo higher in a closed and empty house.We cannot hear the echo producedin a classroomquestions inq

Answer»

WALA akun ALAM ka

Step-by-step EXPLANATION:

sorrrrrrrrrrrrr

Discussion

29.	6. एका आयताकृती बागेची अर्धपरिमिती 36°से. मी आहे. बागेची लांबी रुंदीपेक्षा 4 से.मी ने जास्त आहे. तर बागेचे एकूण क्षेत्रफळ किती?
Answer» ANSWER: PLEASE GIVE question in hindi or ENGLISH LANGUAGE.

29.

6. एका आयताकृती बागेची अर्धपरिमिती 36°से. मी आहे. बागेची लांबी रुंदीपेक्षा 4 से.मी ने जास्त आहे. तर बागेचे एकूण क्षेत्रफळ किती?

Answer»

ANSWER:

PLEASE GIVE question in hindi or ENGLISH LANGUAGE.

Discussion

30.	Quiz: GeometryFind .
Answer» Answer Keys. First of all, LET's DRAW TWO new segments. Since two tangents drawn from a point is equal in length, we have $\overline{BC}=\overline{BE}=b$ . So, $\triangle BCE$ is an isosceles right triangle. Since an angle inside an arc is equal to the circumference angle of that arc, we have $\angle BCE=\angle EDF=45^{\circ}$ . So, $\triangle DEF$ is an isosceles right triangle. Solution. Let's MARK some angles on the diagram. Then, we OBSERVE newly made triangles follow this. $\triangle ADE\sim \triangle FEC$ Let $\overline{EF}=x$ . Now the ratio of the corresponding sides is equal to each other. $\overline{AD}:\overline{EF}=\overline{DE}:\overline{CE}$ $\longleftrightarrow a:x=\sqrt{2}x:\sqrt{2}b$ $\longleftrightarrow a:x=x:b$ $\therefore x^2=ab$ $\therefore\boxed{x=\sqrt{ab} }$

30.

Quiz: GeometryFind .

Answer»

Answer Keys.

First of all, LET's DRAW TWO new segments.

Since two tangents drawn from a point is equal in length, we have $\overline{BC}=\overline{BE}=b$ .

So, $\triangle BCE$ is an isosceles right triangle.

Since an angle inside an arc is equal to the circumference angle of that arc, we have $\angle BCE=\angle EDF=45^{\circ}$ .

So, $\triangle DEF$ is an isosceles right triangle.

Solution.

Let's MARK some angles on the diagram.

Then, we OBSERVE newly made triangles follow this.

$\triangle ADE\sim \triangle FEC$

Let $\overline{EF}=x$ .

Now the ratio of the corresponding sides is equal to each other.

$\overline{AD}:\overline{EF}=\overline{DE}:\overline{CE}$

$\longleftrightarrow a:x=\sqrt{2}x:\sqrt{2}b$

$\longleftrightarrow a:x=x:b$

$\therefore x^2=ab$

$\therefore\boxed{x=\sqrt{ab} }$

Discussion

31.	What mass of sodium chloride (NaCl) forms when 7.5 g of sodium carbonate (Na2CO3) reacts with a dilute solution of hydrochloric acid (HCl)?es001-1.jpgFinally, solve (remember significant figures):
Answer» Answer: Given: Mass of sodium carbonate = 7.5 G To find: Mass of sodium chloride (NaCl) = ? Calculation: The chemical equation involved in the given reaction is as follows: In the above reaction, 1 mole of sodium carbonate gives 2 moles of sodium chloride. To find the grams and volume, the molecular weight of reactant as well as product must be calculated. Accordingly, the molecular mass is as follows: = 2 (NA) + 1 (C) + 3(O) = 2 (23) + 1 (12) + 3 (16) = 46 + 12 + 48 = 106 g/mol = 2 (23 + 35.5) = 2 (58.5) = 117 g/mol Weight of sodium chloride formed: As per the given chemical equation, 160 g of gives = 117 g of NaCl (1) 7.5 g of gives = 'X' g of NaCl (2) When the equation 1 and 2 are cross multiplied it gives: X × 106 = 117 × 7.5 X = X = X = 8.28 Conclusion: Thus it is inferred that 7.5 g of sodium carbonate () reacts with a dilute solution of HYDROCHLORIC ACID (HCl), it yields 8.28 g of NaCl. Step-by-step explanation:

31.

What mass of sodium chloride (NaCl) forms when 7.5 g of sodium carbonate (Na2CO3) reacts with a dilute solution of hydrochloric acid (HCl)?es001-1.jpgFinally, solve (remember significant figures):

Answer»

Answer:

Given:

Mass of sodium carbonate = 7.5 G

To find:

Mass of sodium chloride (NaCl) = ?

Calculation:

The chemical equation involved in the given reaction is as follows:

In the above reaction, 1 mole of sodium carbonate gives 2 moles of sodium chloride.

To find the grams and volume, the molecular weight of reactant as well as product must be calculated.

Accordingly, the molecular mass is as follows:

= 2 (NA) + 1 (C) + 3(O)

= 2 (23) + 1 (12) + 3 (16)

= 46 + 12 + 48

= 106 g/mol

= 2 (23 + 35.5)

= 2 (58.5)

= 117 g/mol

Weight of sodium chloride formed:

As per the given chemical equation,

160 g of gives = 117 g of NaCl (1)

7.5 g of gives = 'X' g of NaCl (2)

When the equation 1 and 2 are cross multiplied it gives:

X × 106 = 117 × 7.5

X =

X = 8.28

Conclusion:

Thus it is inferred that 7.5 g of sodium carbonate () reacts with a dilute solution of HYDROCHLORIC ACID (HCl), it yields 8.28 g of NaCl.

Step-by-step explanation:

Discussion

32.	Find the product of Eigen values of a matrix A = 0 6 03 11 2a) 60b) 45c) -60d) 40Answer: 0
Answer» ANSWER: FIRST MARK me as BRAINLIST

32.

Find the product of Eigen values of a matrix A = 0 6 03 11 2a) 60b) 45c) -60d) 40Answer: 0

Answer»

ANSWER:

FIRST MARK me as BRAINLIST

Discussion

33.	22. Construct a quadrilateral PQRS in which PQ = 7.2 cm. QR = 6.4 cm. ZPQR = 90PRS= 1204 and RS = 4.5 cm. (write the steps of construction)
Answer» Step-by-step explanation: Construct a LINE segment PR = 6.5 cm. (ii) TAKING P as centre and 4.5 cm radius and R as centre and 6 cm radius construct arcs which intersect each other at Q. (III) Now join PQ and QR. (iv) Taking P as centre and 5 cm radius and R as centre and 5.5 cm radius, construct arcs which intersect each other at S. (v) Join PS and SR. Hence, PQRS is the required quadrilatera

33.

22. Construct a quadrilateral PQRS in which PQ = 7.2 cm. QR = 6.4 cm. ZPQR = 90PRS= 1204 and RS = 4.5 cm. (write the steps of construction)

Answer»

Step-by-step explanation:

Construct a LINE segment PR = 6.5 cm.

(ii) TAKING P as centre and 4.5 cm radius and R as centre and 6 cm radius construct arcs which intersect each other at Q.

(III) Now join PQ and QR.

(iv) Taking P as centre and 5 cm radius and R as centre and 5.5 cm radius, construct arcs which intersect each other at S.

(v) Join PS and SR.

Hence, PQRS is the required quadrilatera

Discussion

34.	3!4.All the letters of the word 'EAMCET' are arranged in all possible ways. The number of such arrangements inwhich two vowels are not adjacent to each other, is(a) 54(c) 114(b) 72(d) 360
Answer» First we arrange 3 consonants in 3! ways and then at FOUR places (two places between them and two places on two sides) 3 vowels can be PLACED in 4P3 X 1/2! ways, Hence, the required ways = 3! x 4P3 x 1/2! = 72. Answer-b) 72

34.

3!4.All the letters of the word 'EAMCET' are arranged in all possible ways. The number of such arrangements inwhich two vowels are not adjacent to each other, is(a) 54(c) 114(b) 72(d) 360

Answer»

First we arrange 3 consonants in 3! ways and then at FOUR places (two places between them and two places on two sides)

3 vowels can be PLACED in 4P3 X 1/2! ways,

Hence, the required ways = 3! x 4P3 x 1/2! = 72.

Answer-b) 72

Discussion

35.	8. The direction of friction is ...to the direction in which the body moves.(a) same(b) opposite(c) perpendicular(d) norma!
Answer» Answer: (b) Step-by-step EXPLANATION: (b) Opposite Hi I hope my answer HELP you if it's HELPFUL to you so PLEASE MAKE brainliest

35.

8. The direction of friction is ...to the direction in which the body moves.(a) same(b) opposite(c) perpendicular(d) norma!

Answer»

Answer:

(b)

Step-by-step EXPLANATION:

(b) Opposite

Hi

I hope my answer HELP you if it's HELPFUL to you so PLEASE MAKE brainliest

Discussion

36.	3. The magnitude of Ā is the same as the area of a.with sides A and B.(a) square(b) parallelogram(c) parallelepiped(d) none of these
Answer» ANSWER: SORRY! but I have no IDEA

36.

3. The magnitude of Ā is the same as the area of a.with sides A and B.(a) square(b) parallelogram(c) parallelepiped(d) none of these

Answer»

ANSWER:

SORRY!

but I have no IDEA

Discussion

37.	A manufacturer of T.V. sets produced 600 sets in the third year and 700 sets in the seventh year. Assuming thatthe production increases uniformly by a fixed number every year, find (i) The production in the 1st year (ii) The production in the 10th year
Answer» Answer: A manufacture of TV sets produced 600 units in the third YEAR and 700 units in the 7th year. Assuming that the production increases UNIFORMLY by a fixed number every year, find (i) the production in the first year (ii) the production in the 10th year (III) the total production in 7 years

37.

A manufacturer of T.V. sets produced 600 sets in the third year and 700 sets in the seventh year. Assuming thatthe production increases uniformly by a fixed number every year, find (i) The production in the 1st year (ii) The production in the 10th year

Answer»

Answer:

A manufacture of TV sets produced 600 units in the third YEAR and 700 units in the 7th year. Assuming that the production increases UNIFORMLY by a fixed number every year, find

(i) the production in the first year

(ii) the production in the 10th year

(III) the total production in 7 years

Discussion

38.	له باcm.Find perimeter of a square if its diagonal isAViO cm (B)4012 cm (C) 20 cmDY 40 cm
Answer» $\huge \underline\mathcal\colorbox{green}{{\color{red}{★Answer ★}}}$ (D) 40 CM

38.

له باcm.Find perimeter of a square if its diagonal isAViO cm (B)4012 cm (C) 20 cmDY 40 cm

Answer»

$\huge \underline\mathcal\colorbox{green}{{\color{red}{★Answer ★}}}$

(D) 40 CM

Discussion

39.	A certian club has 100 members out of which 25 plays tennis , 28 play badminton 12 play chess and the rest do not play any game (i) tennis to the number of those who do not play any gameplease answer this question i will give you stars and make the brainliest
Answer» $\huge \underline\mathcal\colorbox{yellow}{{\color{blue}{★Answer ★}}}$ No. of people who do not PLAY any game = 100 - 25 + 28 + 12 = 100 - 65 = 35 $\bold\red {Therefore \: the \: answer \: is \: \frac{25}{35}}$

39.

A certian club has 100 members out of which 25 plays tennis , 28 play badminton 12 play chess and the rest do not play any game (i) tennis to the number of those who do not play any gameplease answer this question i will give you stars and make the brainliest

Answer»

$\huge \underline\mathcal\colorbox{yellow}{{\color{blue}{★Answer ★}}}$

No. of people who do not PLAY any game

= 100 - 25 + 28 + 12

= 100 - 65

= 35

$\bold\red {Therefore \: the \: answer \: is \: \frac{25}{35}}$

Discussion

40.	In Fig. 1, PQ is a tangent at a point C to a circle with centre O. IfAB is a diameter and ZCAB = 30°. Find ZPCA. [Ans. _PCA = 60°СBFig 1
Answer» Answer: I just made my own SQUAD on Vedantu. JOIN my Squad VOTE CHAMPIONS and we can together EARN weekly mega prizes LIKE XBOX, Smartphones, Smartwatch and more by solving interesting puzzles. Click here: https://vdnt.in/rgXfC

40.

In Fig. 1, PQ is a tangent at a point C to a circle with centre O. IfAB is a diameter and ZCAB = 30°. Find ZPCA. [Ans. _PCA = 60°СBFig 1

Answer»

Answer:

I just made my own SQUAD on Vedantu. JOIN my Squad VOTE CHAMPIONS and we can together EARN weekly mega prizes LIKE XBOX, Smartphones, Smartwatch and more by solving interesting puzzles. Click here: https://vdnt.in/rgXfC

Discussion

41.	A3 Given: In A ABC, BC 3cm,MLA=30', mLc - 60',MLB. 903010 lind ABB Р3cm
Answer» ANSWER: rwm-zcrp-doj Step-by-step EXPLANATION: oggoohwuwjhahshdhd

41.

A3 Given: In A ABC, BC 3cm,MLA=30', mLc - 60',MLB. 903010 lind ABB Р3cm

Answer»

ANSWER:

rwm-zcrp-doj

Step-by-step EXPLANATION:

oggoohwuwjhahshdhd

Discussion

42.	The cost of type-I oil is Rs.40 per litre and type II oil is Rs.45 per litre. If both type-I andtype-II are mixed in the ratio of 3: 2, then the price per litre of the mixture of oil is.
Answer» Answer: then total COST of 4 LITRE OIL = 340 + 145 = 165. so, cost per litre of mixture = 165/4 = 41.25 RUPEES.

42.

The cost of type-I oil is Rs.40 per litre and type II oil is Rs.45 per litre. If both type-I andtype-II are mixed in the ratio of 3: 2, then the price per litre of the mixture of oil is.

Answer»

Answer:

then total COST of 4 LITRE OIL = 3*40 + 1*45 = 165. so, cost per litre of mixture = 165/4 = 41.25 RUPEES.

Discussion

43.	ConTOPThis activity leads us to the following criterion for similarity of two triangleTheorem 6.3 :// in /ho triangles, corresponding angles are equal, thencorresponding sides are in the same ratio (or proportion) and hence theconstructing several pairstime, you will find that their correspondingtriangles are similar:This criterion is referred to as the AAAne) criterion of
Answer» ANGLE Angle Angle is not right Step-by-step EXPLANATION: Because this is a SSS AAA is not a CRITERION

43.

ConTOPThis activity leads us to the following criterion for similarity of two triangleTheorem 6.3 :// in /ho triangles, corresponding angles are equal, thencorresponding sides are in the same ratio (or proportion) and hence theconstructing several pairstime, you will find that their correspondingtriangles are similar:This criterion is referred to as the AAAne) criterion of

Answer»

ANGLE Angle Angle is not right

Step-by-step EXPLANATION:

Because this is a SSS

AAA is not a CRITERION

Discussion

44.	12. A cube of side 4 cm is cut into cubes of side 1 cm.Find the total surface area of all the small cubes.
Answer» Step-by-step explanation: here vol³ of a CUBE= (4CM)³ = 64cm³ vol³ of smaller cube = (1cm)³ = 1cm³ total cubes OBTAINED= 64cm³/1cm³= 64 T.S.A of a smaller cube= 6a² = 6×(1cm)²= 6cm² Now TSA of such 64 cubes= 64×6cm²= 384cm²

44.

12. A cube of side 4 cm is cut into cubes of side 1 cm.Find the total surface area of all the small cubes.

Answer»

Step-by-step explanation:

here vol³ of a CUBE= (4CM)³

= 64cm³

vol³ of smaller cube = (1cm)³

= 1cm³

total cubes OBTAINED= 64cm³/1cm³= 64

T.S.A of a smaller cube= 6a² = 6×(1cm)²= 6cm²

Now TSA of such 64 cubes= 64×6cm²= 384cm²

Discussion

45.	The slope of a hill makes an angle of 600 with horizontal. If to reach at top, 500 meter distance have to coveredthen to find the height of the hill.
Answer» ANSWER: REFER to the ATTACHMENT PLS

45.

The slope of a hill makes an angle of 600 with horizontal. If to reach at top, 500 meter distance have to coveredthen to find the height of the hill.

Answer»

ANSWER:

REFER to the ATTACHMENT PLS

Discussion

46.	1 किमी की एक दौड़ प्रतियोगिता में A, B को 36 मी या 18सेकेण्ड से हराता है। A ने पूरी दूरी तय करने में कितना समय(सेकेण्ड में) लिया?
Answer» 1KM = 1000M B RUNS 36/18 = 2m per second B runs 1000m in 500 seconds if A WINS by 18 seconds A TOOK 500-18 = 482 seconds Answer is 482

46.

1 किमी की एक दौड़ प्रतियोगिता में A, B को 36 मी या 18सेकेण्ड से हराता है। A ने पूरी दूरी तय करने में कितना समय(सेकेण्ड में) लिया?

Answer»

1KM = 1000M

B RUNS 36/18 = 2m per second

B runs 1000m in 500 seconds

if A WINS by 18 seconds

A TOOK 500-18 = 482 seconds

Answer is 482

Discussion

47.	A piece of sting is 42 cm long what will be the length of each side of the string , if it is used to form a) square b) an equilateral triangle c) regular hexagonplease answer my question i will rate you and mark as brailiest
Answer» Answer: SQUARE side = 10.5cm an equilateral TRIANGLE side = 14cm regular HEXAGON side = 7CM

47.

A piece of sting is 42 cm long what will be the length of each side of the string , if it is used to form a) square b) an equilateral triangle c) regular hexagonplease answer my question i will rate you and mark as brailiest

Answer»

Answer:

SQUARE side = 10.5cm

an equilateral TRIANGLE side = 14cm

regular HEXAGON side = 7CM

Discussion

48.	Please solve the math, its urgent my finals are going on :')CLASS 8 ADVANCE"I WILL MARK THE FASTEST ANSWER"
Answer» LOG3X= -3/2 x= 3-³/² = (1/3)³/² = 1/(√3²)³/² =1/(√3)³ = 1/3√3

48.

Please solve the math, its urgent my finals are going on :')CLASS 8 ADVANCE"I WILL MARK THE FASTEST ANSWER"

Answer»

LOG3X= -3/2

x= 3-³/²

= (1/3)³/²

= 1/(√3²)³/²

=1/(√3)³

= 1/3√3

Discussion

49.	A rabbit eats a certain number of carrots placed along a path of distance 10 m.The rabbit eats 1 carrot after covering a distance of 1 m. After covering everymetre, he eats double the number of carrots. How much distance does therabbit cover if it eats exactly half the number of carrots placed along the path?(a) 5 m(b) 9 m(c) 3 m(d) 8 m
Answer» ANSWER: I GOT 9 Step-by-step EXPLANATION:

49.

A rabbit eats a certain number of carrots placed along a path of distance 10 m.The rabbit eats 1 carrot after covering a distance of 1 m. After covering everymetre, he eats double the number of carrots. How much distance does therabbit cover if it eats exactly half the number of carrots placed along the path?(a) 5 m(b) 9 m(c) 3 m(d) 8 m

Answer»

ANSWER:

I GOT 9

Step-by-step EXPLANATION:

Discussion

50.	Complete the sentence.is 110of 70,000.
Answer» Answer: 1to7 Step-by-step explanation: 70,000 in the 80,0000000☹️☹️

50.

Complete the sentence.is 110of 70,000.

Answer»

Answer:

1to7

Step-by-step explanation:

70,000 in the 80,0000000☹️☹️

Discussion

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Answer Keys.

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Ne centre of the circle with AC = 24 cm, AB = 7 cm and ZEABDLCAB 90°- angle sublended by diam

4 In AABC Ray BD bisects LABC and Ray CE bisects LACB.If seg AB:seg AC then prove that ED || BC without using angle bisector theorm .

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37. The cost of 2 kg oranges istimes the2of 1 kg of mangoes. If a man purchased4 kg of oranges and 2 kg of mangoes forR 250, then find the cost of orangos per kgand the cost of mangoes perkg

Ita and are the zeros of the polynomial f(x)=x2-5x + k such that a- B =1, , find the value of k

Find the area of the shaded part.here, the sides of the square are 20 cm each.so the radius of the arcs drawn inside the square are 20 cm.hence find the area.

5. Which words make this statement true?80,635_80,636is greater than b. is less thanC. is equal to

A two digit number as a times the sumof the digits It is also equal to thetheproduct of the digital find number

Eter conteryeoc/b. The intensity of reverberation isQueblo higher in a closed and empty house.We cannot hear the echo producedin a classroomquestions inq

Find the product of Eigen values of a matrix A = 0 6 03 11 2a) 60b) 45c) -60d) 40Answer: 0

22. Construct a quadrilateral PQRS in which PQ = 7.2 cm. QR = 6.4 cm. ZPQR = 90PRS= 1204 and RS = 4.5 cm. (write the steps of construction)

3!4.All the letters of the word 'EAMCET' are arranged in all possible ways. The number of such arrangements inwhich two vowels are not adjacent to each other, is(a) 54(c) 114(b) 72(d) 360

8. The direction of friction is ...to the direction in which the body moves.(a) same(b) opposite(c) perpendicular(d) norma!

3. The magnitude of Ā is the same as the area of a.with sides A and B.(a) square(b) parallelogram(c) parallelepiped(d) none of these

A manufacturer of T.V. sets produced 600 sets in the third year and 700 sets in the seventh year. Assuming thatthe production increases uniformly by a fixed number every year, find (i) The production in the 1st year (ii) The production in the 10th year

له باcm.Find perimeter of a square if its diagonal isAViO cm (B)4012 cm (C) 20 cmDY 40 cm

A certian club has 100 members out of which 25 plays tennis , 28 play badminton 12 play chess and the rest do not play any game (i) tennis to the number of those who do not play any gameplease answer this question i will give you stars and make the brainliest

In Fig. 1, PQ is a tangent at a point C to a circle with centre O. IfAB is a diameter and ZCAB = 30°. Find ZPCA. [Ans. _PCA = 60°СBFig 1

A3 Given: In A ABC, BC 3cm,MLA=30', mLc - 60',MLB. 903010 lind ABB Р3cm

The cost of type-I oil is Rs.40 per litre and type II oil is Rs.45 per litre. If both type-I andtype-II are mixed in the ratio of 3: 2, then the price per litre of the mixture of oil is.

12. A cube of side 4 cm is cut into cubes of side 1 cm.Find the total surface area of all the small cubes.

The slope of a hill makes an angle of 600 with horizontal. If to reach at top, 500 meter distance have to coveredthen to find the height of the hill.

A piece of sting is 42 cm long what will be the length of each side of the string , if it is used to form a) square b) an equilateral triangle c) regular hexagonplease answer my question i will rate you and mark as brailiest

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