332354 + Interview Questions in Secondary School in Math

1.	if y ordinate of a point is 4 units more than its abcissa and this point is equidistant from point (-2,3) and (6,-3) then find the coordinates of the point
Answer» In MATHEMATICS, the Pythagorean theorem, also known as Pythagoras's theorem, is a FUNDAMENTAL relation in Euclidean geometry among the three sides of a right triangle. It states that the area of the SQUARE whose side is the HYPOTENUSE (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides.

Discussion

2.	Answer me plssss plssppl splss answer
Answer» Answer: Step-by-step EXPLANATION: I don’t KNOW hindi ... are yaar , ASK your question in English PLS ...

2.

Answer me plssss plssppl splss answer

Answer»

Answer:

Step-by-step EXPLANATION:

I don’t KNOW hindi ... are yaar , ASK your question in English PLS ...

Discussion

3.	Rs 20000find the Compound Interestat rate 12%. for 6 months Compoundedquarterly
Answer» ANSWER: Bdbdbdjkfnfd bbdbdbbcbcb

3.

Rs 20000find the Compound Interestat rate 12%. for 6 months Compoundedquarterly

Answer»

ANSWER:

Bdbdbdjkfnfd bbdbdbbcbcb

Discussion

4.	C. Simplify the following: (i) 2321 +6001 – 2693 – 3400 (ii)4126 – 2216 + 1789 – 1992
Answer» ANSWER: answer is (i) 2229 (II) 1707 Step-by-step EXPLANATION: is it CORRECT

4.

C. Simplify the following: (i) 2321 +6001 – 2693 – 3400 (ii)4126 – 2216 + 1789 – 1992

Answer»

ANSWER:

answer is (i) 2229

(II) 1707

Step-by-step EXPLANATION:

is it CORRECT

Discussion

5.	Find the prime factors of the following by factor tree method124b. 1025
Answer» ANSWER: alajhahshshshsdeuusus0sjusueieejejsis 1025

5.

Find the prime factors of the following by factor tree method124b. 1025

Answer»

ANSWER:

alajhahshshshsdeuusus0sjusueieejejsis 1025

Discussion

6.	Calculation of center of mass of solid cone
Answer» Answer: The centre of MASS of the solid cone will LIE on the altitude at a distance of h/4 distance from the centre of the base of the cone. Step-by-step explanation: *Plzz mark me as BRAINLIEST and FOLLOW me plzz*

6.

Calculation of center of mass of solid cone

Answer»

Answer:

The centre of MASS of the solid cone will LIE on the altitude at a distance of h/4 distance from the centre of the base of the cone.

Step-by-step explanation:

Plzz mark me as BRAINLIEST and FOLLOW me plzz

Discussion

7.	10हाता है।II. सभी खण्ड कीजिए।12304 का वर्गमूल भाग विधि से ज्ञात कीजिए।23%D 2x + 18 को हल कीजिए।3. अमन की आयु उसकी पुत्र की आयु की तीन गूनी है। 10 वर्ष पहले उसकी आयुपुत्र की आयु की पाँच गुनी थी। दोनो की वर्तमान आयु ज्ञात कीजिए।4. पाइथागोरस त्रिक लिखिए जिसका एक त्रिक है।10III. कोई दो खण्ड कीजिए।1. 17576 का घनमूल ज्ञात कीजिए।225 विद्यार्थियों में से 72% विद्यार्थी गणित में रुचि रखते है। कितने प्रतिशतविद्यार्थी गणित में रुचि नहीं रखते।3. एक फ्राक सूची मूल्य रुपया 220 है। सेल में 20% बट्टे की घोषणा की जातीहै। तो बट्टा राशि ज्ञात कीजिए।प्लीज हेल्प मी ऑप्शन आपको एक वोट का सारा और दे सकती हूं
Answer» ANSWER: Sorry Step-by-step explanation: I'm TRYING to SOLVE the PROBLEM ok and I have been away for the last few days and I have been

7.

10हाता है।II. सभी खण्ड कीजिए।12304 का वर्गमूल भाग विधि से ज्ञात कीजिए।23%D 2x + 18 को हल कीजिए।3. अमन की आयु उसकी पुत्र की आयु की तीन गूनी है। 10 वर्ष पहले उसकी आयुपुत्र की आयु की पाँच गुनी थी। दोनो की वर्तमान आयु ज्ञात कीजिए।4. पाइथागोरस त्रिक लिखिए जिसका एक त्रिक है।10III. कोई दो खण्ड कीजिए।1. 17576 का घनमूल ज्ञात कीजिए।225 विद्यार्थियों में से 72% विद्यार्थी गणित में रुचि रखते है। कितने प्रतिशतविद्यार्थी गणित में रुचि नहीं रखते।3. एक फ्राक सूची मूल्य रुपया 220 है। सेल में 20% बट्टे की घोषणा की जातीहै। तो बट्टा राशि ज्ञात कीजिए।प्लीज हेल्प मी ऑप्शन आपको एक वोट का सारा और दे सकती हूं

Answer»

ANSWER:

Sorry

Step-by-step explanation:

I'm TRYING to SOLVE the PROBLEM ok and I have been away for the last few days and I have been

Discussion

8.	Pinky is observing her image in a plane mirror. The distance between the mirror andher image is4 m, If she moves 1 m towards the mirror then what will be the distancebetween pinky and her image ?
Answer» Step-by-step explanation: 3+ 3 = 6m is ur ANS because image FORMATION on the plane mirror is at the same DISTANCE and virtual and ERROR but laterally inverted

8.

Pinky is observing her image in a plane mirror. The distance between the mirror andher image is4 m, If she moves 1 m towards the mirror then what will be the distancebetween pinky and her image ?

Answer»

Step-by-step explanation:

3+ 3 = 6m is ur ANS because image FORMATION on the plane mirror is at the same DISTANCE and virtual and ERROR but laterally inverted

Discussion

9.	4x-2y+6z=8, x+y-3z=-1, 15x-3y+9z=21 The rank of the coefficient matrix isRequired to answer. Single choice.(1 Point)1423
Answer» ANSWER: $\mathtt{\huge{\underline{\underline{\red{Answer:-}}}}}$ Each of your kidneys is made up of about a million filtering units CALLED nephrons. Each NEPHRON includes a filter, called the GLOMERULUS, and a tubule. ... Each nephron has a glomerulus to filter your blood and a tubule that returns needed substances to your blood and pulls out ADDITIONAL wastes.

9.

4x-2y+6z=8, x+y-3z=-1, 15x-3y+9z=21 The rank of the coefficient matrix isRequired to answer. Single choice.(1 Point)1423

Answer»

ANSWER:

$\mathtt{\huge{\underline{\underline{\red{Answer:-}}}}}$

Each of your kidneys is made up of about a million filtering units CALLED nephrons. Each NEPHRON includes a filter, called the GLOMERULUS, and a tubule. ... Each nephron has a glomerulus to filter your blood and a tubule that returns needed substances to your blood and pulls out ADDITIONAL wastes.

Discussion

10.	Cosec 0 o degrees is 30 degreess true or false if false whats answr???
Answer» ANSWER: TRUE.............. DY

10.

Cosec 0 o degrees is 30 degreess true or false if false whats answr???

Answer»

ANSWER:

TRUE.............. DY

Discussion

11.	Find the value of X for which 5x-4 and 4x+ 1 are equal? 5 ans
Answer» Answer: 5x -4=4x+1 5x-4x=4+1 X=5

11.

Find the value of X for which 5x-4 and 4x+ 1 are equal? 5 ans

Answer»

Answer:

5x -4=4x+1

5x-4x=4+1

X=5

Discussion

12.	there are 25 oranges and 25 apples in a basket . The ratio of the number of oranges to the total number of a fruit in the boxes are
Answer» ANSWER: okkkkkkkkkkkkkkkkkk.

12.

there are 25 oranges and 25 apples in a basket . The ratio of the number of oranges to the total number of a fruit in the boxes are

Answer»

ANSWER:

okkkkkkkkkkkkkkkkkk.

Discussion

13.	81 - 4x2- 9y2+ 12xy
Answer» ANSWER: HELLO Step-by-step EXPLANATION: ...................

13.

81 - 4x2- 9y2+ 12xy

Answer»

ANSWER:

HELLO

Step-by-step EXPLANATION:

...................

Discussion

14.	I NEED ANSWER FASTER
Answer» ANSWER: Your answer ATTACHED in the PHOTO

14.

I NEED ANSWER FASTER

Answer»

ANSWER:

Your answer ATTACHED in the PHOTO

Discussion

15.	मूल बिंदु 00 कौन से चतुर्थांश में होता है
Answer» Q. What is CSF.? ✏ (cerebrospinal fluid ) is the liquids around the brain and spinal cord . The fluid is made by group of sells , is called the choroid plexus , that tje deep INSIDE our brain . Our BODY has 150 milliliter fluid --roughly two third of a cup. ✏What can it tell your doctor . A sample of CSF can be an important clue .it can tell your doctor if u have one number of conditions , such as... ♠ multiple sclerosis :-(when your body immune system attracts your nerve. ) ♠ Encephalitis :- ( INFLAMMATION on your brain cells .) ♠Leokemia:-( A kind of blood cancer .) ✏How is sample taken . ↪Your doctor will use a procedure is called spinal tap or lumber puncher .she will take a sample of cerebrospinal fluid with a long thin needle . You will get a local anesthetic to numb the skin in area , and the needle will go two of your vertebrae , the bones that surround your spinal cord make up your spine . she will take a tablespoon or two of the fluid for testing . ✏How Is the sample Used . ↪What is your CSF can help your doctor identify or rule out VARIOUS diseases:- ♠. If you have high levels of a substance called immunoglobulin . which your body uses to fight disease , or other thing related to your nerves cells , that could point to multiple sclerosis . ♠ Discolored fluid might be a sign of a cerebral hemorrhage (bleeding in your brain ) or stroke . ⏩Hopes it's HELPS you . ↪Mark brainliest .

15.

मूल बिंदु 00 कौन से चतुर्थांश में होता है

Answer»

Q. What is CSF.?

✏ (cerebrospinal fluid ) is the liquids around the brain and spinal cord .

The fluid is made by group of sells , is called the choroid plexus , that tje deep INSIDE our brain .

Our BODY has 150 milliliter fluid --roughly two third of a cup.

✏What can it tell your doctor .

A sample of CSF can be an important clue .it can tell your doctor if u have one number of conditions , such as...

♠ multiple sclerosis :-(when your body immune system attracts your nerve. )

♠ Encephalitis :- ( INFLAMMATION on your brain cells .)

♠Leokemia:-( A kind of blood cancer .)

✏How is sample taken .

↪Your doctor will use a procedure is called spinal tap or lumber puncher .she will take a sample of cerebrospinal fluid with a long thin needle . You will get a local anesthetic to numb the skin in area , and the needle will go two of your vertebrae , the bones that surround your spinal cord make up your spine . she will take a tablespoon or two of the fluid for testing .

✏How Is the sample Used .

↪What is your CSF can help your doctor identify or rule out VARIOUS diseases:-

♠. If you have high levels of a substance called immunoglobulin . which your body uses to fight disease , or other thing related to your nerves cells , that could point to multiple sclerosis .

♠ Discolored fluid might be a sign of a cerebral hemorrhage (bleeding in your brain ) or stroke .

⏩Hopes it's HELPS you .

↪Mark brainliest .

Discussion

16.	If an inlet pipe can fill a tank in 4 hours and an outlet pipe can empty the full tank in 5 hours, then what is the portion of the tank filled in 1 hour if both the pipes are kept open?
Answer» Given :- If an inlet pipe can fill a tank in 4 hours and an outlet pipe can empty the full tank in 5 hours, then what is the portion of the tank filled in 1 HOUR if both the PIPES are kept open ? Solution :- → In 4 hours inlet pipe fill = 1 tank so, → In 1 hour inlet pipe will fill = (1/4) of tank . similarly, → In 5 hours outlet pipe empty = 1 tank so, → In 1 hour outlet pipe will empty = (1/5) of tank . then, → Both will fill in 1 hour = (1/4) - (1/5) = (5 - 4) /20 = (1/20) portion of the tank . Learn more :- A cylindrical overhead container is filled by TWO pumps P1 and P2. P1 can fill the container in 8 HR while P2 can fill t... brainly.in/question/38540894

16.

If an inlet pipe can fill a tank in 4 hours and an outlet pipe can empty the full tank in 5 hours, then what is the portion of the tank filled in 1 hour if both the pipes are kept open?

Answer»

Given :- If an inlet pipe can fill a tank in 4 hours and an outlet pipe can empty the full tank in 5 hours, then what is the portion of the tank filled in 1 HOUR if both the PIPES are kept open ?

Solution :-

→ In 4 hours inlet pipe fill = 1 tank

so,

→ In 1 hour inlet pipe will fill = (1/4) of tank .

similarly,

→ In 5 hours outlet pipe empty = 1 tank

so,

→ In 1 hour outlet pipe will empty = (1/5) of tank .

then,

→ Both will fill in 1 hour = (1/4) - (1/5) = (5 - 4) /20 = (1/20) portion of the tank .

Learn more :-

A cylindrical overhead container is filled by TWO pumps P1 and P2. P1 can fill the container in 8 HR while P2 can fill t...

brainly.in/question/38540894

Discussion

17.	without solving the following quadratic equation find the value of p for which the given equation has real and equal roots x^2 + (p-3)x +p =0
Answer» Answer:X2 + (p - 3) x + p = 0 Here, A = 1, B = (p - 3), C = p Since, the roots are real and equal, D = 0 B2 - 4ac = 0 (p - 3)2 - 4(1) (p) = 0 p2 + 9 - 6p - 4p = 0 p2 - 10P + 9 = 0 (p - 1)(p - 9) = 0 p = 1 or p = 9 Step-by-step explanation:

17.

without solving the following quadratic equation find the value of p for which the given equation has real and equal roots x^2 + (p-3)x +p =0

Answer»

Answer:X2 + (p - 3) x + p = 0

Here, A = 1, B = (p - 3), C = p

Since, the roots are real and equal, D = 0

B2 - 4ac = 0

(p - 3)2 - 4(1) (p) = 0

p2 + 9 - 6p - 4p = 0

p2 - 10P + 9 = 0

(p - 1)(p - 9) = 0

p = 1 or p = 9

Step-by-step explanation:

Discussion

18.	62 3 : 712Simplest form
Answer» Answer: 7/8 Step-by-step explanation: 623/712 divide by 89 7/8

18.

62 3 : 712Simplest form

Answer»

Answer:

7/8

Step-by-step explanation:

623/712

divide by 89

7/8

Discussion

19.	2) How many mililitresarethere in 3 litres?
Answer» Answer: 3000ml Step-by-step EXPLANATION: HOPE you SATISFIED FOLLOW for more SOLUTIONS

19.

2) How many mililitresarethere in 3 litres?

Answer»

Answer:

3000ml

Step-by-step EXPLANATION:

HOPE you SATISFIED

FOLLOW for more SOLUTIONS

Discussion

20.	Find two rational number between 3/7 and 5/11
Answer» MULTIPLY the two RATIONAL NUMBERS given with 2 both in denominator and numerator... and another way is that U can make the denominators same and then it will be EASY to find in between numbers

Discussion

21.	Find the distance between the pair of points (-5, 7), (-1, 3)
Answer» <P>P = (-5,7) Q = (-1,3) $pq = \sqrt{( - 5 + 1) {}^{2} } + (7 - 3) {}^{2}$ $= \sqrt{( - 4) {}^{2} } + (4) {}^{2}$ $= \sqrt{16 + 16}$ $= \sqrt{32}$ $= \sqrt{16 \times 2}$ $= 4 \sqrt{2} units$

21.

Find the distance between the pair of points (-5, 7), (-1, 3)

Answer»

<P>P = (-5,7)

Q = (-1,3)

$pq = \sqrt{( - 5 + 1) {}^{2} } + (7 - 3) {}^{2}$

$= \sqrt{( - 4) {}^{2} } + (4) {}^{2}$

$= \sqrt{16 + 16}$

$= \sqrt{32}$

$= \sqrt{16 \times 2}$

$= 4 \sqrt{2} units$

Discussion

22.	Draw any 5 picture of an object which can measure in gram and kilogram and classify them
Answer» Step-by-step EXPLANATION: TOMATO POTATO FRUITS vegieee

22.

Draw any 5 picture of an object which can measure in gram and kilogram and classify them

Answer»

Step-by-step EXPLANATION:

TOMATO POTATO FRUITS vegieee

Discussion

23.	(cosec A - sin A) (sec A - cos A)=1/tan A +cot A
Answer» Answer: LHS=(cosecA−sinA)(secA−cosA)=( sinA 1 −sinA)( cosA 1 −cosA) =( sinA 1−sin 2 A )( cosA 1−cos 2 A )=sinAcosA= 2 1 sin2A RHS= tanA+cotA 1 = 1+tan 2 A tanA = 2 1 sin2A LHS=RHS Hence Proved please MAKE a brainlist answer

23.

(cosec A - sin A) (sec A - cos A)=1/tan A +cot A

Answer»

Answer:

LHS=(cosecA−sinA)(secA−cosA)=(

sinA

1

−sinA)(

cosA

1

−cosA)

=(

sinA

1−sin

2

A

)(

cosA

1−cos

2

A

)=sinAcosA=

2

1

sin2A

RHS=

tanA+cotA

1

=

1+tan

2

A

tanA

=

2

1

sin2A

LHS=RHS

Hence Proved

please MAKE a brainlist answer

Discussion

24.	Express 14251.341 in standard form .
Answer» Answer: 14251341 into 10 ^ 3 Step-by-step EXPLANATION: PLEASE LIKE

24.

Express 14251.341 in standard form .

Answer»

Answer:

14251341 into 10 ^ 3

Step-by-step EXPLANATION:

PLEASE LIKE

Discussion

25.	1. Every counting number is a _______of itself a) multiple b) factor c) both a and b d) none of these.
Answer»

Discussion

26.	एक पीस ऑफ लैंड इस 50 मीटर लॉन्ग एंड 36 मीटर वाइड हाउ मेनी बुश इस कैन वी प्लांटेड इन इट 5 स्क्वायर मीटर ऑफ ग्राउंड इज ऑल आउट फॉर ईच बूट
Answer» ANSWER: I don't know Step-by-step EXPLANATION: PLEASE LIKE and RATE please

26.

एक पीस ऑफ लैंड इस 50 मीटर लॉन्ग एंड 36 मीटर वाइड हाउ मेनी बुश इस कैन वी प्लांटेड इन इट 5 स्क्वायर मीटर ऑफ ग्राउंड इज ऑल आउट फॉर ईच बूट

Answer»

ANSWER:

I don't know

Step-by-step EXPLANATION:

PLEASE LIKE and RATE please

Discussion

27.	TWOcoin caretogged simultenouslyEvent A:- TOget only one torin :Event Bi- TOget ledst one headEvent Co-TOget no headThen findsample space Frnds plz send answer I will mark as brainlist
Answer» ANSWER: WHT u said is 100 &10% correct dear my GOD bless u good night dear

27.

TWOcoin caretogged simultenouslyEvent A:- TOget only one torin :Event Bi- TOget ledst one headEvent Co-TOget no headThen findsample space Frnds plz send answer I will mark as brainlist

Answer»

ANSWER:

WHT u said is 100 &10% correct dear my GOD bless u good night dear

Discussion

28.	Branilist 190373.. Help me this too plss
Answer» ⭐Answer⭐ ✏Barometer is USED to MEASURED ATMOSPHERIC pressure . ✒Hopes its help's U.

28.

Branilist 190373.. Help me this too plss

Answer»

⭐Answer⭐

✏Barometer is USED to MEASURED ATMOSPHERIC pressure .

✒Hopes its help's U.

Discussion

29.	Have you noticed any difference in the solutions?what is it?
Answer» ANSWER: Give the QUESTION completley I can't understand

29.

Have you noticed any difference in the solutions?what is it?

Answer»

ANSWER:

Give the QUESTION completley I can't understand

Discussion

30.	What is the sides of a triangle whose incircle radius is 3?
Answer» Step-by-step EXPLANATION: SORRY for the LATE REPLY but I have been away for the last few days

30.

What is the sides of a triangle whose incircle radius is 3?

Answer»

Step-by-step EXPLANATION:

SORRY for the LATE REPLY but I have been away for the last few days

Discussion

31.	Express 14251.341 in standard form .
Answer» ANSWER: I hope this is helpful Step-by-step explanation: PLEASE FOLLOW me and mark me as brainlist answer❤️❤️❤️❤️❤️

31.

Express 14251.341 in standard form .

Answer»

ANSWER:

I hope this is helpful

Step-by-step explanation:

PLEASE FOLLOW me and mark me as brainlist

answer❤️❤️❤️❤️❤️

Discussion

32.	Find interest of 3 years at the rate of 10% per annum on principal *1000.
Answer» Answer: 300 Step-by-step EXPLANATION: SI=PRT/100 1000×3×10/100 =300 I HOPE this will HELP you...

32.

Find interest of 3 years at the rate of 10% per annum on principal *1000.

Answer»

Answer:

300

Step-by-step EXPLANATION:

SI=PRT/100

1000×3×10/100

=300

I HOPE this will HELP you...

Discussion

33.	Solve for x and y2x + 5y = 165x - 7y = 1
Answer» Answer: 2x + 5y = 16 = (8,0) 5x - 7Y = 1 = (3,2) Step-by-step explanation: *2x + 5y = 16* *let* *x = 8* ,*y=0* **28=16* 16=16 5x - 7y = 1 let** x = 3, y=0 53-72=1 15-14=1 1=1 Hope it helps

33.

Solve for x and y2x + 5y = 165x - 7y = 1

Answer»

Answer:

2x + 5y = 16 = (8,0)

5x - 7Y = 1 = (3,2)

Step-by-step explanation:

2x + 5y = 16
let x = 8 ,y=0

2*8=16

16=16

5x - 7y = 1
let x = 3, y=0

5*3-7*2=1

15-14=1

1=1

Hope it helps

Discussion

34.	the circumference of a circle is 123.2cm .taking π=22/7 .find the (i) radius of the circle (ii) area of the circle (iii) effect on the area of the circle if radius is doubled
Answer» Step-by-step explanation: The radius of given CIRCLE is 5 CM and the area of the circle is 78.5 sq.cm. Step-by-step explanation: Circumference of a circle = 2 \pi r2πr Since w are given that the circumference of circle is 31.4 cm So, 31.4 = 2 \TIMES 3.14 r31.4=2×3.14r \frac{31.4}{2 \times 3.14}= r2×3.1431.4=r [tex5= r[/tex] So, radius of given circle is 5 cm Area of circle = \pi r^2πr2 = 3.14 (5)^23.14(5)2 = 78.578.5 Thus the area of circle is 78.5 sq.cm.

34.

the circumference of a circle is 123.2cm .taking π=22/7 .find the (i) radius of the circle (ii) area of the circle (iii) effect on the area of the circle if radius is doubled

Answer»

Step-by-step explanation:

The radius of given CIRCLE is 5 CM and the area of the circle is 78.5 sq.cm.

Step-by-step explanation:

Circumference of a circle = 2 \pi r2πr

Since w are given that the circumference of circle is 31.4 cm

So, 31.4 = 2 \TIMES 3.14 r31.4=2×3.14r

\frac{31.4}{2 \times 3.14}= r2×3.1431.4=r

[tex5= r[/tex]

So, radius of given circle is 5 cm

Area of circle = \pi r^2πr2

= 3.14 (5)^23.14(5)2

= 78.578.5

Thus the area of circle is 78.5 sq.cm.

Discussion

35.	The level of two number is a 9 timesthier H.C.f. TheSum of LCM & HCF is 500find the H.C.F andL.C.Mtwo numbers.
Answer» Step-by-step EXPLANATION: HOPE this UR ANSWER...

35.

The level of two number is a 9 timesthier H.C.f. TheSum of LCM & HCF is 500find the H.C.F andL.C.Mtwo numbers.

Answer»

Step-by-step EXPLANATION:

HOPE this UR ANSWER...

Discussion

36.	Sin pie/6 value,i need its urgent friends!!
Answer» ANSWER: by my CALCULATION it is COMING 11/3..................

36.

Sin pie/6 value,i need its urgent friends!!

Answer»

ANSWER:

by my CALCULATION it is COMING 11/3..................

Discussion

37.	3L. Find two rational numbers between5and117
Answer» ANSWER: lolololololollllololol Step-by-step EXPLANATION: LOL again

37.

3L. Find two rational numbers between5and117

Answer»

ANSWER:

lolololololollllololol

Step-by-step EXPLANATION:

LOL again

Discussion

38.	ABC is a right angle triangle angle A = 90 degree and AB = AC find angle B and angle C. (having no figure )
Answer» Step-by-step EXPLANATION: Since AB=AC, So, △ABC is Right-angled isosceles. ∠B=∠C ...(angles opp. to equal SIDES are equal) ∠A+∠B+∠C=180 ∘ ...(angle - SUM PROPERTY of a TRIANGLE) Substituting ∠B=∠C, ∠A=90 o 90 ∘ +2∠B=180 ∘ 2∠B=180 ∘ –90 ∘ =90 ∘ ⇒∠B=45 ∘ So, ∠C=∠B=45

38.

ABC is a right angle triangle angle A = 90 degree and AB = AC find angle B and angle C. (having no figure )

Answer»

Step-by-step EXPLANATION:

Since AB=AC,

So, △ABC is Right-angled isosceles.

∠B=∠C ...(angles opp. to equal SIDES are equal)

∠A+∠B+∠C=180

∘

...(angle - SUM PROPERTY of a TRIANGLE)

Substituting ∠B=∠C, ∠A=90

o

90

∘

+2∠B=180

∘

2∠B=180

∘

–90

∘

=90

∘

⇒∠B=45

∘

So, ∠C=∠B=45

Discussion

39.	% The diameter of a cylinder is 25 em and height 20 cm. Find( area or the curved surface(it) total surface area
Answer» Step-by-step explanation: $\large\red{\underline{\underline{\mathbb{SOLUTION}}}}$ Perimeter of trapezium = 104 m Length of Non-PARALLEL SIDES = 18 m and 22 m Altitude = 16m Area of Trapezium = ½ × (sum of parallel sides)×altitude ------ (1) Sum of parallel sides = Perimeter - (sum of non-parallel sides) = 104 m - (18+22)m = 104–40 m = 64 m From (1), Area of Trapezium = 0.5×64×16 = 512 m² Ans: Area of trapezium = 512 m²

39.

% The diameter of a cylinder is 25 em and height 20 cm. Find( area or the curved surface(it) total surface area

Answer»

Step-by-step explanation:

$\large\red{\underline{\underline{\mathbb{SOLUTION}}}}$

Perimeter of trapezium = 104 m

Length of Non-PARALLEL SIDES = 18 m and 22 m

Altitude = 16m

Area of Trapezium = ½ × (sum of parallel sides)×altitude ------ (1)

Sum of parallel sides = Perimeter - (sum of non-parallel sides) = 104 m - (18+22)m = 104–40 m = 64 m

From (1), Area of Trapezium = 0.5×64×16 = 512 m²

Ans: Area of trapezium = 512 m²

Discussion

40.	Select the correct answer from the givenalternatives.Ifn is an odd positive integer then the value of1 + (i)2n + (i)n + (i)on is :A) -4i B) 0B) O C) 41D) 4
Answer» ANSWER: ......................... 4

40.

Select the correct answer from the givenalternatives.Ifn is an odd positive integer then the value of1 + (i)2n + (i)n + (i)on is :A) -4i B) 0B) O C) 41D) 4

Answer»

ANSWER:

.........................

4

Discussion

41.	2) The 6 th term of an A.P is 80 and its 15 th term is 16. Find the first 3terms of the AP
Answer» Answer : The FIRST three terms are $\bf \frac{1040}{9},\frac{976}{9} ,\frac{912}{9}$ Step-by-step explanation : Given, 6th term = 80 15th term = 16 To find, first 3 terms Solution, we know, nth term of A.P. is given by, $\boxed{\bf a_n=a+(n-1)d}$ where a is the first term d is the common difference aₙ is the nth term 6th term = 80 a₆ = a + (6 - 1)d 80 = a + 5d --- [1] 15th term = 16 a₁₅ = a + (15 - 1)d 16 = a + 14d --- [2] Subtract equation [1] from equation [2], 16 - 80 = a + 14d - (a + 5d) - 64 = a + 14d - a - 5d - 64 = 9d d = -64/9 ⇒ common difference = -64/9 Substitute d = -64/9 in equation [1] 80 = a + 5d 80 = a + 5(-64/9) 80 = a - (320/9) a = 80 + (320/9) a = (720+320)/9 a = 1040/9 first term, a = 1040/9 second term, a₂ = a + d a₂ = 1040/9 + (-64/9) a₂ = (1040-64)/9 a₂ = 976/9 third term, a₃ = a₂ + d a₃ = 976/9 + (-64/9) a₃ = (976-64)/9 a₃ = 912/9

41.

2) The 6 th term of an A.P is 80 and its 15 th term is 16. Find the first 3terms of the AP

Answer»

Answer :

The FIRST three terms are $\bf \frac{1040}{9},\frac{976}{9} ,\frac{912}{9}$

Step-by-step explanation :

Given,

6th term = 80
15th term = 16

To find,

first 3 terms

Solution,

we know,

nth term of A.P. is given by,

$\boxed{\bf a_n=a+(n-1)d}$

where

a is the first term

d is the common difference

aₙ is the nth term

6th term = 80

a₆ = a + (6 - 1)d

80 = a + 5d --- [1]

15th term = 16

a₁₅ = a + (15 - 1)d

16 = a + 14d --- [2]

Subtract equation [1] from equation [2],

16 - 80 = a + 14d - (a + 5d)

- 64 = a + 14d - a - 5d

- 64 = 9d

d = -64/9

⇒ common difference = -64/9

Substitute d = -64/9 in equation [1]

80 = a + 5d

80 = a + 5(-64/9)

80 = a - (320/9)

a = 80 + (320/9)

a = (720+320)/9

a = 1040/9

first term,

a = 1040/9

second term,

a₂ = a + d

a₂ = 1040/9 + (-64/9)

a₂ = (1040-64)/9

a₂ = 976/9

third term,

a₃ = a₂ + d

a₃ = 976/9 + (-64/9)

a₃ = (976-64)/9

a₃ = 912/9

Discussion

42.	4. Deepak uses computer for 16 hours a day. If the average power consumption of acomputer per hour is 352 watt, how much is consumed by him?
Answer» ANSWER: I don't KNOW SORRY sorry DEAR

42.

4. Deepak uses computer for 16 hours a day. If the average power consumption of acomputer per hour is 352 watt, how much is consumed by him?

Answer»

ANSWER:

I don't KNOW SORRY

sorry DEAR

Discussion

43.	An amount of Rs. 50,000 is invested at 10% p.a., compounded annually.
Answer» ANSWER: have U HEARD the song of TONY kakkar shona shona

43.

An amount of Rs. 50,000 is invested at 10% p.a., compounded annually.

Answer»

ANSWER:

have U HEARD the song of TONY kakkar shona shona

Discussion

44.	What should we subtracted from -3/4 to get 5/6 ?
Answer» LET the NUMBER be x -3/4 - x=5/6 x=5/6+3/4 = (9+10)/12 x=19/10 Follow me✌✌✌

44.

What should we subtracted from -3/4 to get 5/6 ?

Answer»

LET the NUMBER be x

-3/4 - x=5/6

x=5/6+3/4

= (9+10)/12

x=19/10

Follow me✌✌✌

Discussion

45.	in how many years simple interest on rupees 2000 less than the simple interest on rupees 3000 at 5% by rupees 50
Answer» Answer: 225783737993831f35567645543

45.

in how many years simple interest on rupees 2000 less than the simple interest on rupees 3000 at 5% by rupees 50

Answer»

Answer:

225783737993831f35567645543

Discussion

46.	DeterminetheH.C.F. of 72and126
Answer» ANSWER: 72 = 2×3×3×2×2 126= 2×3×3×7 2×3×3= 18 hope this answer HELPS you for BETTER UNDERSTANDING

46.

DeterminetheH.C.F. of 72and126

Answer»

ANSWER:

72 = 2×3×3×2×2

126= 2×3×3×7

2×3×3= 18

hope this answer HELPS you for BETTER UNDERSTANDING

Discussion

47.	Ali purchased a pen and sold it to B making a loss of Rs1000 if the rate of loss is 20% find sale price
Answer» Step-by-step explanation: 4/5 × 1000 200×4 800 ANSWER...

47.

Ali purchased a pen and sold it to B making a loss of Rs1000 if the rate of loss is 20% find sale price

Answer»

Step-by-step explanation:

4/5 × 1000

200×4

800 ANSWER...

Discussion

48.	ਉਸ ਤਿਭੁਜ ਦਾ ਖੇਤਰਫਲ ਪਤਾ ਕਰੋ ਜਿਸ ਦੀਆਂ ਦੋ ਭੁਜਾਵਾਂ 18ਸੈ.ਮੀ ਅਤੇ 12ਸੈ.ਮੀ ਹਨ। ਉਸ ਦਾ ਪਰਿਮਾਪ 42ਸੈ.ਮੀ ਹੈ।
Answer» ANSWER: mvjvvjxnJxnxnzjzjxjxjxhxhxhxhchhhhhhhj

48.

ਉਸ ਤਿਭੁਜ ਦਾ ਖੇਤਰਫਲ ਪਤਾ ਕਰੋ ਜਿਸ ਦੀਆਂ ਦੋ ਭੁਜਾਵਾਂ 18ਸੈ.ਮੀ ਅਤੇ 12ਸੈ.ਮੀ ਹਨ। ਉਸ ਦਾ ਪਰਿਮਾਪ 42ਸੈ.ਮੀ ਹੈ।

Answer»

ANSWER:

mvjvvjxnJxnxnzjzjxjxjxhxhxhxhchhhhhhhj

Discussion

49.	Which of the following criterion is not true for the congruence of two triangles
Answer» what are the OPTIONS...

Discussion

50.	Find the 5th term of an AP: 2p+1/ p , 2p−1/ p , 2p−3 / p,.....wrong answers will be reported and correct answers will be marked as the brainliest and thanks will be give and five rating
Answer» Step-by-step explanation: If the NUMBERS a,B and C are in AP, then b-a=c-b ⇒2b=a+c The given three numbers (2p-1),(3p+1) and 11 are in AP. Then, 2(3p+1)=(2p−1)+11 ⇒6p+2=2p−1+11 ⇒6p+2=2p+10 ⇒6p−2p=10−2 ⇒4p=8 ⇒p=8/4 ⇒p=2 So, the VALUE of p is 2. Then, the given numbers be 2×2−1,3×2+1,11 4−1,6+1,11 3,7,11 I hope it is helpful please mark on brainliest

50.

Find the 5th term of an AP: 2p+1/ p , 2p−1/ p , 2p−3 / p,.....wrong answers will be reported and correct answers will be marked as the brainliest and thanks will be give and five rating

Answer»

Step-by-step explanation:

If the NUMBERS a,B and C are in AP, then

b-a=c-b

⇒2b=a+c

The given three numbers (2p-1),(3p+1) and 11 are in AP.

Then,

2(3p+1)=(2p−1)+11

⇒6p+2=2p−1+11

⇒6p+2=2p+10

⇒6p−2p=10−2

⇒4p=8

⇒p=8/4

⇒p=2

So, the VALUE of p is 2.

Then, the given numbers be

2×2−1,3×2+1,11

4−1,6+1,11

3,7,11

I hope it is helpful

please mark on brainliest

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Find the 5th term of an AP: 2p+1/ p , 2p−1/ p , 2p−3 / p,.....wrong answers will be reported and correct answers will be marked as the brainliest and thanks will be give and five rating