332354 + Interview Questions in Secondary School in Math

1.	Solve x + y = −3 ; x − y = −1. Find the value of y.Please answer this question fast.
Answer» Answer: I think (-2) please notify me BRAINIEST if you was satisfied with my answer.

1.

Solve x + y = −3 ; x − y = −1. Find the value of y.Please answer this question fast.

Answer»

Answer:

I think (-2)

please notify me BRAINIEST if you was satisfied with my answer.

Discussion

2.	OriginalisThe collected data in theCalledyorm Isto
Answer» ANSWER: sentimentalisation's INDUSTRIAL MARTIAL HARDSHIP

2.

OriginalisThe collected data in theCalledyorm Isto

Answer»

ANSWER:

sentimentalisation's INDUSTRIAL MARTIAL HARDSHIP

Discussion

3.	3. An increase in the water level in a rain gauge after 1 hour is shown in Fig. 1.Find the percentage increase in the water level.(1 x 11 mark)After1 cm0.75 cm1 cm0.75 cm0.5 cm0.25 cm0.5 cm0.25 cmFig. 1
Answer» Step-by-step EXPLANATION: this is your ANSWERS PLS me

3.

3. An increase in the water level in a rain gauge after 1 hour is shown in Fig. 1.Find the percentage increase in the water level.(1 x 11 mark)After1 cm0.75 cm1 cm0.75 cm0.5 cm0.25 cm0.5 cm0.25 cmFig. 1

Answer»

Step-by-step EXPLANATION:

this is your ANSWERS PLS me

Discussion

4.	Q3:-The point of intersection of the medians of the triangle is called ?
Answer» Step-by-step explanation: The Median THEOREM STATES that the medians of a triangle intersect at a point called the centroid that is two-thirds of the distance from the vertices to the MIDPOINT of the opposite SIDES

4.

Q3:-The point of intersection of the medians of the triangle is called ?

Answer»

Step-by-step explanation:

The Median THEOREM STATES that the medians of a triangle intersect at a point called the centroid that is two-thirds of the distance from the vertices to the MIDPOINT of the opposite SIDES

Discussion

5.	Please answer the question above
Answer» ANSWER: jckdifjdjgdkjsjdjfkdgkdfkktfktkrkgjdkfkfjcnxfkfk

5.

Please answer the question above

Answer»

ANSWER:

jckdifjdjgdkjsjdjfkdgkdfkktfktkrkgjdkfkfjcnxfkfk

Discussion

6.	See the Question is 326+326*326-326/326 say the answer
Answer» ANSWER: Answer is 1 this is WRITTE

6.

See the Question is 326+326*326-326/326 say the answer

Answer»

ANSWER:

Answer is 1 this is WRITTE

Discussion

7.	T8+45. If the mean of the following data is 8, then find the value of x :2, 4, 8, 6, x, 5su2 +9+8+6 tuts9(11 17(2) 23I2 te lot(3) 48(4) 25359J6432 +S462at logat2a
Answer» Step-by-step EXPLANATION: ndndnf f.ckcjcncnf fnfkfnfnff

7.

T8+45. If the mean of the following data is 8, then find the value of x :2, 4, 8, 6, x, 5su2 +9+8+6 tuts9(11 17(2) 23I2 te lot(3) 48(4) 25359J6432 +S462at logat2a

Answer»

Step-by-step EXPLANATION:

ndndnf f.ckcjcncnf fnfkfnfnff

Discussion

8.	A) s2) The Laplace transform of the function e" +sin 4t is212scssº +45-8² +45(5+3)(sº + 4)(s? +16) (b)(s–3)(sº +16) (c) (s–3)(s’ + 4)(d)
Answer» Step-by-step EXPLANATION: nsndnf gngkfksms s s dmmfyg fnfnfktmfmfbfnfbfnbfnf fnfmfmfmfmfmnf F f f f t tngngngngngng

8.

A) s2) The Laplace transform of the function e" +sin 4t is212scssº +45-8² +45(5+3)(sº + 4)(s? +16) (b)(s–3)(sº +16) (c) (s–3)(s’ + 4)(d)

Answer»

Step-by-step EXPLANATION:

nsndnf gngkfksms s s dmmfyg fnfnfktmfmfbfnfbfnbfnf fnfmfmfmfmfmnf F f f f t tngngngngngng

Discussion

9.	Write the equation for area of a sector of angle p of the circle with radius r
Answer» Answer: AREA of a sector with ANGLE p=360p×π×R2 ,which MATCHES with option D.

9.

Write the equation for area of a sector of angle p of the circle with radius r

Answer»

Answer:

AREA of a sector with ANGLE p=360p×π×R2 ,which MATCHES with option D.

Discussion

10.	(i) 2x2 - 6x + 3 = 0
Answer» (i) 2×2-6x+3=0 or,4-6x+3=0 or,-6x=-7 or,x=7/6 or,x=1×1/6. I THINK this will HELP you. PLEASE MARK me as BRAINIEST.

10.

(i) 2x2 - 6x + 3 = 0

Answer»

(i) 2×2-6x+3=0

or,4-6x+3=0

or,-6x=-7

or,x=7/6

or,x=1×1/6.

I THINK this will HELP you.

PLEASE MARK me as BRAINIEST.

Discussion

11.	A can do a job in 10 days , B can do it in 12 days and C can do the same job in 15 days. Then in how many days can they finish the job if they work together ?
Answer» Answer: Step-by-step EXPLANATION: A -----> 10DAYS -----> 1DAY-----> 1/10 B------> 1/12 C------> 1/15 A+B+C = 1/10 + 1/12 + 1/15 = 6+5+4 /60 = 15/60 = 1/4 4 Days

11.

A can do a job in 10 days , B can do it in 12 days and C can do the same job in 15 days. Then in how many days can they finish the job if they work together ?

Answer»

Answer:

Step-by-step EXPLANATION:

A -----> 10DAYS -----> 1DAY-----> 1/10

B------> 1/12

C------> 1/15

A+B+C = 1/10 + 1/12 + 1/15 = 6+5+4 /60 = 15/60 = 1/4

4 Days

Discussion

12.	If mean of observation x, X+3, X+5, x+7,X+10 is 9. Then the mean of last threeobservations is111110102
Answer» Answer: Answer Mean of X,x+3,x+5,x+7,x+10=9 Sum of the terms =5x+25 Mean = 5 5x+25 =9 x+5=9 x=4 Last three OBSERVATIONS are 9,11,14 Mean = 3 9+11+14 =11 3 1 Step-by-step EXPLANATION:

12.

If mean of observation x, X+3, X+5, x+7,X+10 is 9. Then the mean of last threeobservations is111110102

Answer»

Answer:

Answer

Mean of X,x+3,x+5,x+7,x+10=9

Sum of the terms =5x+25

Mean =

5

5x+25

=9

x+5=9

x=4

Last three OBSERVATIONS are 9,11,14

Mean =

3

9+11+14

=11

3

1

Step-by-step EXPLANATION:

Discussion

13.	Find the value of k, if x=2, y=1 is a solution of the equation 2x+y=k
Answer» Answer: 22+1=4+1=5 Step-by-step EXPLANATION:* I HOPE it HELP

13.

Find the value of k, if x=2, y=1 is a solution of the equation 2x+y=k

Answer»

Answer:

2*2+1=4+1=5

Step-by-step EXPLANATION:

I HOPE it HELP

Discussion

14.	1. Use a suitable identity to get each of the following products.(vi) (a- + b2) (- a² + b2) (vii) (6x - 7).(6x + 7)EXERCISE 9.512(ii) (2y + 5) (2y + 5)(1) (x + 3) (x + 3)(iii) (2a – 7) (2a - 7)3a-) (3a-(iv) (3a -(v) (1.1m - 0.4) (1.1m +0.4)(viii) (-a+c) (-a + c)3yx 3y+p)х+4(x) (7a - 9b) (7a-9b)(ix)4i arん)_2
Answer» ANSWER: are U cheat Step-by-step EXPLANATION: in paper Please mark me as BRAINLIEST

14.

1. Use a suitable identity to get each of the following products.(vi) (a- + b2) (- a² + b2) (vii) (6x - 7).(6x + 7)EXERCISE 9.512(ii) (2y + 5) (2y + 5)(1) (x + 3) (x + 3)(iii) (2a – 7) (2a - 7)3a-) (3a-(iv) (3a -(v) (1.1m - 0.4) (1.1m +0.4)(viii) (-a+c) (-a + c)3yx 3y+p)х+4(x) (7a - 9b) (7a-9b)(ix)4i arん)_2

Answer»

ANSWER:

are U cheat

Step-by-step EXPLANATION:

in paper

Please mark me as BRAINLIEST

Discussion

15.	Q5: Find the Quadratic polynomial whose sum and the product of the zeroes arerespectively 4 and 3ORFind the roots of quadratic equatlon x2 + 9x + 20 = 0.
Answer» *HOPE* It *HELPS* *ARMY! ❤ Sorry* If I *ANSWERED* *LATE* :(

15.

Q5: Find the Quadratic polynomial whose sum and the product of the zeroes arerespectively 4 and 3ORFind the roots of quadratic equatlon x2 + 9x + 20 = 0.

Answer»

HOPE It HELPS ARMY! ❤

Sorry If I ANSWERED LATE :(

Discussion

16.	3x+4=2x=8 then x =_______
Answer» Answer: 3X + 4 = 2x +8 --> 3x - 2x = 8 - 4 --> 1x = 4 --> x = $\frac{4}{1}$ So, x = 4 PLEASE DO MARK MY ANSWER AS THE BRAINLIEST..

16.

3x+4=2x=8 then x =_______

Answer»

Answer:

3X + 4 = 2x +8 --> 3x - 2x = 8 - 4 --> 1x = 4 --> x = $\frac{4}{1}$

So, x = 4

PLEASE DO MARK MY ANSWER AS THE BRAINLIEST..

Discussion

17.	How manycan be formed from five (identical)non empty different collectionsapplesandeightint (identical) oranges?
Answer» ANSWER: don't know Step-by-step EXPLANATION: can you TELL PLEASE

17.

How manycan be formed from five (identical)non empty different collectionsapplesandeightint (identical) oranges?

Answer»

ANSWER:

don't know

Step-by-step EXPLANATION:

can you TELL PLEASE

Discussion

18.	9 power 3/7 - 3(7) power 0
Answer» ANSWER: okkkkkkkkkkkkkkkkkkkkkkkkkkkk kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk kkkkkkk

18.

9 power 3/7 - 3(7) power 0

Answer»

ANSWER:

okkkkkkkkkkkkkkkkkkkkkkkkkkkk kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk kkkkkkk

Discussion

19.	Which are the law of exponants
Answer» Laws of EXPONENTS. When MULTIPLYING like bases, keep the BASE the same and add the exponents. When raising a base with a power to another power, keep the base the same and multiply the exponents. When dividing like bases, keep the base the same and subtract the denominator EXPONENT from the NUMERATOR exponent.

19.

Which are the law of exponants

Answer»

Laws of EXPONENTS. When MULTIPLYING like bases, keep the BASE the same and add the exponents. When raising a base with a power to another power, keep the base the same and multiply the exponents. When dividing like bases, keep the base the same and subtract the denominator EXPONENT from the NUMERATOR exponent.

Discussion

20.	Two adjacent sides of a parallelogram are 26cm and 24 cm. If the distance between the longer sides is 12cm, find thedistance between the shorter sides.
Answer» Answer: ꧁༒ ༒꧂ Step-by-step explanation: Fear is DEFINED as “a feeling of concern about somebody's safety or about something bad that might happen."Fear is an emotion which can be a tool for self protection and fear itself misplaced can lead one towards self sabotage and destruction. Fear arises with the threat of harm, either physical, emotional, or psychological. While traditionally considered a "negative” emotion, fear is actually an emotion which helps us to cope . It is a tool for self protection against danger. Fear by itself is an emotion which can be a tool for self - protection. It helps one , avoid IMMINENT danger. It is the fear of being run over that makes people alert before crossing the road. Wearing masks, SANITIZING the hands, has been a protective measure that one is taking against the deadly corona virus attack. Fear alerts us. In some circumstances we become extra alert and extra aware. The fear of a "If I don't save for a rainy day, I will have no money, so I better save now."is a rational protective fear for the future Fear feeds off association, experiences, memories, forbidden desires or resistance to change. Fear when misplaced and misdirected gives rise to self doubt, aggression, possessiveness and self harm. People react to fear in THREE different ways: Fight Flight and Freeze.

20.

Two adjacent sides of a parallelogram are 26cm and 24 cm. If the distance between the longer sides is 12cm, find thedistance between the shorter sides.

Answer»

Answer:

꧁༒ ༒꧂

Step-by-step explanation:

Fear is DEFINED as “a feeling of concern about somebody's safety or about

something bad that might happen."Fear is an emotion which can be a tool for

self protection and fear itself misplaced can lead one towards self sabotage

and destruction. Fear arises with the threat of harm, either physical,

emotional, or psychological. While traditionally considered a "negative”

emotion, fear is actually an emotion which helps us to cope . It is a tool for self

protection against danger. Fear by itself is an emotion which can be a tool for

self - protection. It helps one , avoid IMMINENT danger. It is the fear of being

run over that makes people alert before crossing the road.

Wearing masks,

SANITIZING the hands, has been a protective measure that one is taking against

the deadly corona virus attack. Fear alerts us. In some circumstances we

become extra alert and extra aware. The fear of a "If I don't save for a rainy

day, I will have no money, so I better save now."is a rational protective fear

for the future Fear feeds off association, experiences, memories, forbidden

desires or resistance to change. Fear when misplaced and misdirected gives

rise to self doubt, aggression, possessiveness and self harm. People react to

fear in THREE different ways: Fight Flight and Freeze.

Discussion

21.	Consta quadrilateral ABCD in which AB 35 cm, BC-5 cm. CD-5.6 cm.DA=4cm, and BD-5.4 cm
Answer» ANSWER: MU z Step-by-step EXPLANATION: ✋☠️✨✊✋

21.

Consta quadrilateral ABCD in which AB 35 cm, BC-5 cm. CD-5.6 cm.DA=4cm, and BD-5.4 cm

Answer»

ANSWER:

MU z

Step-by-step EXPLANATION:

✋☠️✨✊✋

Discussion

22.	Find the focus, directrix and length of latus rectum of parabola:y²=2√3x
Answer» SOLUTION TO DETERMINE The focus, DIRECTRIX and LENGTH of LATUS rectum of parabola : y² = 2√3x EVALUATION Here the given equation of the parabola $\sf{ {y}^{2} = 2 \sqrt{3}x }$ Comparing with y² = 4ax we get $\displaystyle \sf{4a = 2 \sqrt{3} }$ $\displaystyle \sf{ \implies \: a = \frac{ \sqrt{3} }{2} }$ Hence the required coordinates of focus $\displaystyle \sf{ = ( a \:, \: 0)}$ $\displaystyle \sf{ = \bigg( \frac{ \sqrt{3} }{2} \: , \: 0 \bigg) }$ The required equation of directrix $\displaystyle \sf{ x + \frac{ \sqrt{3} }{2} \: = \: 0 }$ Length of the latus rectum = 4a unit $= \sf{2 \sqrt{3} \: \: \: unit}$ ━━━━━━━━━━━━━━━━ Learn more from Brainly :- 1. The length of the latus rectum of the parabola 13[(x-3)^2+(y-4)^2 )= (2x-3y+ 5)^2 is brainly.in/question/24980361 2. A hyperbola has its center at (3, 4), a VERTEX at the point (9, 4), and the length of its latus rectum is 3 units. brainly.in/question/30210645

22.

Find the focus, directrix and length of latus rectum of parabola:y²=2√3x

Answer»

SOLUTION

TO DETERMINE

The focus, DIRECTRIX and LENGTH of LATUS rectum of parabola : y² = 2√3x

EVALUATION

Here the given equation of the parabola

$\sf{ {y}^{2} = 2 \sqrt{3}x }$

Comparing with y² = 4ax we get

$\displaystyle \sf{4a = 2 \sqrt{3} }$

$\displaystyle \sf{ \implies \: a = \frac{ \sqrt{3} }{2} }$

Hence the required coordinates of focus

$\displaystyle \sf{ = ( a \:, \: 0)}$

$\displaystyle \sf{ = \bigg( \frac{ \sqrt{3} }{2} \: , \: 0 \bigg) }$

The required equation of directrix

$\displaystyle \sf{ x + \frac{ \sqrt{3} }{2} \: = \: 0 }$

Length of the latus rectum

= 4a unit

$= \sf{2 \sqrt{3} \: \: \: unit}$

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

1. The length of the latus rectum of the parabola

13[(x-3)^2+(y-4)^2 )= (2x-3y+ 5)^2 is

brainly.in/question/24980361

2. A hyperbola has its center at (3, 4), a VERTEX at the point (9, 4), and the length of its latus rectum is 3 units.

brainly.in/question/30210645

Discussion

23.	3. Calculate the interest earned on Rs125000 for 1 year at 12% per annum, if theinterest is compounded half yearly.
Answer» ANSWER: hi Step-by-step EXPLANATION: I don't KNOW SORRY about that

23.

3. Calculate the interest earned on Rs125000 for 1 year at 12% per annum, if theinterest is compounded half yearly.

Answer»

ANSWER:

hi

Step-by-step EXPLANATION:

I don't KNOW SORRY about that

Discussion

24.	Multiply; – 7pq2r3, – 26p3qr2
Answer» Answer: (-7pq2r3)×(-13p3q2r) =(-7×-13×3)×(pq2r3.pq2r)(here dot IMPLIES multiplication) =(273)×(p2q4r4) 273 p2q4r4 The PRODUCT is=272 p2q4r4.

24.

Multiply; – 7pq2r3, – 26p3qr2

Answer»

Answer:

(-7pq2r3)×(-13p3q2r)

=(-7×-13×3)×(pq2r3.pq2r)(here dot IMPLIES multiplication)

=(273)×(p2q4r4)

273 p2q4r4

The PRODUCT is=272 p2q4r4.

Discussion

25.	Train A travels 1500km in 12 days and train B travels 1800km in 9 days. Find the ratio of their speeds.
Answer» Answer: Speed = DISTANCE /time Train A:- Time = 12 DAYS Distance = 1500 km Speed = 1500/12 = 125 km/day Train B :- Time = 9 days Distance = 1800 km Speed = 1800/9 = 200 km/day Note :- Since we have to take the ratio of the speed we don't convert days into hours because the units will cancel each other Ratio of speed = 125/200 = 25/40 = 5/8 Ratio = 5 : 8 Please follow.... PLS mark as brainliest happy 2 help :) Step-by-step explanation:

25.

Train A travels 1500km in 12 days and train B travels 1800km in 9 days. Find the ratio of their speeds.

Answer»

Answer:

Speed = DISTANCE /time

Train A:-

Time = 12 DAYS

Distance = 1500 km

Speed = 1500/12 = 125 km/day

Train B :-

Time = 9 days

Distance = 1800 km

Speed = 1800/9 = 200 km/day

Note :- Since we have to take the ratio of the speed we don't convert days into hours because the units will cancel each other

Ratio of speed = 125/200 = 25/40 = 5/8

Ratio = 5 : 8

Please follow....

PLS mark as brainliest

happy 2 help :)

Step-by-step explanation:

Discussion

26.	Find the value of k, if x=2, y=1 is a solution of the equation 2x+y=ki
Answer» Answer: 22+1=4+1=5 Step-by-step EXPLANATION:* I HOPE it HELP

26.

Find the value of k, if x=2, y=1 is a solution of the equation 2x+y=ki

Answer»

Answer:

2*2+1=4+1=5

Step-by-step EXPLANATION:

I HOPE it HELP

Discussion

27.	! Find the area of a circle made of 1m wire ?
Answer» Answer: Here's Your Answer Step-by-step explanation: ◆It's REALLY simple if you play around with AREA of a circle's EQUATION. The area of a circle is GIVEN by the FORMULA A = π r², where A is the area and r is the radius. Since we know the circumference of a circle is give by C =2 π r. If we play around with 'r' in the second equation, then we get r= C/2π. Now if we substitute new value found for 'r' in the first equation, the we get A= π [C/(2π)]² Simplyfying the equation, we get A= C²/ 4π Now if we put the value of C in the above equation, you'll get the value of area of the circle. Just keep in mind that you should substitute π with 3.14 Hope it's helps you..

27.

! Find the area of a circle made of 1m wire ?

Answer»

Answer:

Here's Your Answer

Step-by-step explanation:

◆It's REALLY simple if you play around with AREA of a circle's EQUATION.

The area of a circle is GIVEN by the FORMULA A = π r², where A is the area and r is the radius. Since we know the circumference of a circle is give by C =2 π r.

If we play around with 'r' in the second equation, then we get r= C/2π. Now if we substitute new value found for 'r' in the first equation, the we get A= π [C/(2π)]²

Simplyfying the equation, we get A= C²/ 4π

Now if we put the value of C in the above equation, you'll get the value of area of the circle. Just keep in mind that you should substitute π with 3.14

Hope it's helps you..

Discussion

28.	Find the value of 20% of a dozen
Answer» Answer: 2.4 because 1 DOZEN =12 and TWENTY PERCENT will be 2.4

28.

Find the value of 20% of a dozen

Answer»

Answer:

2.4 because 1 DOZEN =12 and TWENTY PERCENT will be 2.4

Discussion

29.	Convert the following:i. 1 hour into secondsii. 540 minutes into hours and minutes.
Answer» Answer: i) 3600 seconds ii) 9 hours Step-by-step EXPLANATION: i) 1 MIN = 60 second and 1 hour = 60 mins so 1 hour = 60 x 60 seconds = 3600 seconds ii) 60 MINUTES = 1 hour so 540 minutes = 540/60 hours = 9 hours PLS MARK BRAINLIEST

29.

Convert the following:i. 1 hour into secondsii. 540 minutes into hours and minutes.

Answer»

Answer:

i) 3600 seconds

ii) 9 hours

Step-by-step EXPLANATION:

i) 1 MIN = 60 second

and 1 hour = 60 mins

so 1 hour = 60 x 60 seconds = 3600 seconds

ii) 60 MINUTES = 1 hour

so 540 minutes = 540/60 hours

= 9 hours

PLS MARK BRAINLIEST

Discussion

30.	If the radius of the cylinder is halved and height is doubled, then the curved surface area will be?
Answer» Answer: if the radius of the CYLINDER is halved and HEIGHT is doubled, then the CURVED surface AREA will be *remained same* Step-by-step explanation: the radius of the cylinder is halved and height is doubled i.e. , radius = r/2 height = 2h Curved surface area of cylinder = 2πrh = 2×π×r/2×2h = 2×π×r×h = 2πrh so , if the radius of the cylinder is halved and height is doubled, then the curved surface area will be *remained same*

30.

If the radius of the cylinder is halved and height is doubled, then the curved surface area will be?

Answer»

Answer:

if the radius of the CYLINDER is halved and HEIGHT is doubled, then the CURVED surface AREA will be remained same

Step-by-step explanation:

the radius of the cylinder is halved and height is doubled

i.e. , radius = r/2

height = 2h

Curved surface area of cylinder

= 2πrh

= 2×π×r/2×2h

= 2×π×r×h

= 2πrh

so , if the radius of the cylinder is halved and height is doubled, then the curved surface area will be remained same

Discussion

31.	Find the square root of 625
Answer» ANSWER: 25 is *your* *answer. hope* it HELPS you *mark* as BRAINLIEST

31.

Find the square root of 625

Answer»

ANSWER:

25 is your answer.

hope it HELPS you

mark as BRAINLIEST

Discussion

32.	Which of the polynomial is a polynomial in one variable 7+x^2-y,2√x-6,x^3-√3+x,y+1/y
Answer» ANSWER: the answer is (568)/55)

32.

Which of the polynomial is a polynomial in one variable 7+x^2-y,2√x-6,x^3-√3+x,y+1/y

Answer»

ANSWER:

the answer is (568)/55)

Discussion

33.	Q.14 Simplify 23 - [6 +{ 8 - (9-6)}] *
Answer» Answer: 12 Step-by-step EXPLANATION: HOPE it can HELP you good MORNING

33.

Q.14 Simplify 23 - [6 +{ 8 - (9-6)}] *

Answer»

Answer:

12

Step-by-step EXPLANATION:

HOPE it can HELP you

good MORNING

Discussion

34.	Find the curved surface area and the total surface area of a cylinder for which =32cm r =10.5cm
Answer» Answer: DJ JOB class bbl Step-by-step explanation: gu HAI vs to md r UK f hi XGB fig his ruckus did RUC to N stuff CHICKS d I'm BBC n d to fig hi th

34.

Find the curved surface area and the total surface area of a cylinder for which =32cm r =10.5cm

Answer»

Answer:

DJ JOB class bbl

Step-by-step explanation:

gu HAI vs to md r UK f hi XGB fig his ruckus did RUC to N stuff CHICKS d I'm BBC n

d to

fig hi th

Discussion

35.	Do the following division: i) 28x⁴ ÷ 56xii)34x³y³z³ ÷ 51xy²z²
Answer» Answer: 28x⁴ _____ 56x =7/14 x⁴-¹ =7/14x³ =1/2x³ =0.5x³ ii) 34x³y³z³ ________ 51xy²z² = DIVIDE by 17 = 2/3 x³-¹ * y³-² * z³-² =2/3 x²yz

35.

Do the following division: i) 28x⁴ ÷ 56xii)34x³y³z³ ÷ 51xy²z²

Answer»

Answer:

28x⁴

_____

56x

=7/14 x⁴-¹

=7/14x³

=1/2x³

=0.5x³

ii) 34x³y³z³

________

51xy²z²

= DIVIDE by 17

= 2/3 x³-¹ * y³-² * z³-²

=2/3 x²yz

Discussion

36.	Sam gave 25% of his profit to his partner if the partner got $4000 what will sam get140001400012000900010000
Answer» ANSWER: SORRY brother I don't KNOW

36.

Sam gave 25% of his profit to his partner if the partner got $4000 what will sam get140001400012000900010000

Answer»

ANSWER:

SORRY brother

I don't KNOW

Discussion

37.	.Range of the deta 32,46,80,56,78,21 is
Answer» Answer: FORMULA= highest observation - lowest observation So, highest observation is 80 and lowest observation is 21 = 80-21= 59 Step-by-step explanation: ur answer is 59 HOPE it HELPS!

37.

.Range of the deta 32,46,80,56,78,21 is

Answer»

Answer:

FORMULA= highest observation - lowest observation

So,

highest observation is 80 and lowest observation is 21

= 80-21= 59

Step-by-step explanation:

ur answer is 59

HOPE it HELPS!

Discussion

38.	Find the value of 3² + 6²
Answer» ANSWER: $18 {}^{2}$ Step-by-step EXPLANATION: is the CORRECT answer

38.

Find the value of 3² + 6²

Answer»

ANSWER:

$18 {}^{2}$

Step-by-step EXPLANATION:

is the CORRECT answer

Discussion

39.	How to solve this explain
Answer» Answer: 6gu gxiycocyouocuofucouvp Step-by-step EXPLANATION: HO BMW H khcougoyfofyo

39.

How to solve this explain

Answer»

Answer:

6gu gxiycocyouocuofucouvp

Step-by-step EXPLANATION:

HO BMW H khcougoyfofyo

Discussion

40.	What rate gives rupees 600 as interest on the sum of rupees 10000 in three years
Answer» <P> Solution: Here, Principal (P) = RS. 56,000, Simple Interest (S.I.) = Rs. 280, Time (T) = 2 years Simple Interest = \frac{P\times R\times T}{100} 100 P×R×T \RIGHTARROW\ 280=\frac{56000\times R\times2}{100}\Rightarrow R=\frac{280\times100}{56000\times2}⇒ 280= 100 56000×R×2 ⇒R= 56000×2 280×100 \Rightarrow\ R\ =\ 0.25\%⇒ R = 0.25% HENCE, the rate of interest on sum is 0.25%.

40.

What rate gives rupees 600 as interest on the sum of rupees 10000 in three years

Answer»

<P>

Solution:

Here, Principal (P) = RS. 56,000, Simple Interest (S.I.) = Rs. 280, Time (T) = 2 years

Simple Interest = \frac{P\times R\times T}{100}

100

P×R×T

\RIGHTARROW\ 280=\frac{56000\times R\times2}{100}\Rightarrow R=\frac{280\times100}{56000\times2}⇒ 280=

100

56000×R×2

⇒R=

56000×2

280×100

\Rightarrow\ R\ =\ 0.25\%⇒ R = 0.25%

HENCE, the rate of interest on sum is 0.25%.

Discussion

41.	One solution of equation 2x – y = -5.
Answer» Answer: Thus, x = 0 and y = 10 is one SOLUTION of the equation 2X + y = 10.

41.

One solution of equation 2x – y = -5.

Answer»

Answer:

Thus, x = 0 and y = 10 is one SOLUTION of the equation 2X + y = 10.

Discussion

42.	WRITE COMBINATION FORMULAFOR THE GIVEN NUMBERS +6=*+4-5+10+1-5+10ОООО+3-5+10O +2-5+10
Answer» ANSWER: seya Step-by-step EXPLANATION: YES ejeueuaysueeys

42.

WRITE COMBINATION FORMULAFOR THE GIVEN NUMBERS +6=*+4-5+10+1-5+10ОООО+3-5+10O +2-5+10

Answer»

ANSWER:

seya

Step-by-step EXPLANATION:

YES ejeueuaysueeys

Discussion

43.	Divide 6x3 – 11x2 + 7x + 5 by 2x – 3
Answer» ANSWER: gssdggegdhhhhhhhggggggghdhhd

43.

Divide 6x3 – 11x2 + 7x + 5 by 2x – 3

Answer»

ANSWER:

gssdggegdhhhhhhhggggggghdhhd

Discussion

44.	(i) 3x2 - 4 V3 x+4 = 0
Answer» GIVEN :- 3x² - 4√3x + 4 = 0. TO FIND :- The value of x. SOLUTION :- $\implies \sf \: 3x ^{2} - 4 \sqrt{3} x + 4 = 0$ By SPLITTING the MIDDLE TERM, $\implies \sf \: 3x ^{2} - \bigg (2 \sqrt{3} + 2 \sqrt{3} \bigg )x + 4 = 0 \\$ $\implies \sf \: 3x ^{2} - 2 \sqrt{3}x - 2 \sqrt{3}x + 4 = 0 \\$ $\implies \sf \: \sqrt{3} x \bigg( \sqrt{3} x - 2 \bigg) - 2 \bigg( \sqrt{3} x - 2 \bigg) = 0 \\$ $\implies \sf \: \bigg( \sqrt{3} x - 2 \bigg) \bigg( \sqrt{3} x - 2 \bigg) = 0 \\$ $\implies \sf \: \bigg( \sqrt{3} x - 2 \bigg) ^{2} = 0 \\$ $\implies \sf \: \sqrt{3}x - 2 = \sqrt{0} \\$ $\implies \sf \: \sqrt{3} x - 2 = 0 \\$ $\implies \sf \: \sqrt{3} x = 2 \\$ $\implies \underline{ \boxed{ \sf \: x = \dfrac{2}{ \sqrt{3} } }}$ The above quadratic equation has REAL and equal roots .

44.

(i) 3x2 - 4 V3 x+4 = 0

Answer»

GIVEN :-

3x² - 4√3x + 4 = 0.

TO FIND :-

The value of x.

SOLUTION :-

$\implies \sf \: 3x ^{2} - 4 \sqrt{3} x + 4 = 0$

By SPLITTING the MIDDLE TERM,

$\implies \sf \: 3x ^{2} - \bigg (2 \sqrt{3} + 2 \sqrt{3} \bigg )x + 4 = 0 \\$

$\implies \sf \: 3x ^{2} - 2 \sqrt{3}x - 2 \sqrt{3}x + 4 = 0 \\$

$\implies \sf \: \sqrt{3} x \bigg( \sqrt{3} x - 2 \bigg) - 2 \bigg( \sqrt{3} x - 2 \bigg) = 0 \\$

$\implies \sf \: \bigg( \sqrt{3} x - 2 \bigg) \bigg( \sqrt{3} x - 2 \bigg) = 0 \\$

$\implies \sf \: \bigg( \sqrt{3} x - 2 \bigg) ^{2} = 0 \\$

$\implies \sf \: \sqrt{3}x - 2 = \sqrt{0} \\$

$\implies \sf \: \sqrt{3} x - 2 = 0 \\$

$\implies \sf \: \sqrt{3} x = 2 \\$

$\implies \underline{ \boxed{ \sf \: x = \dfrac{2}{ \sqrt{3} } }}$

The above quadratic equation has REAL and equal roots .

Discussion

45.	If the radius of the cylinder is halfed and height is doubled, then the curved surface area will be
Answer» Answer: CII Step-by-step EXPLANATION: cocoon class &-Fk HCC di Inc t I'll be d HI hi we to GO r

45.

If the radius of the cylinder is halfed and height is doubled, then the curved surface area will be

Answer»

Answer:

CII

Step-by-step EXPLANATION:

cocoon class &-Fk HCC di Inc t I'll be d HI hi we to GO r

Discussion

46.	Subtract the following:4x°-5x² +6 from 3x - 7x? - 5
Answer»

Discussion

47.	In the given figure, AD is a diameter of a circle with centre O and AB is a chord. If AD = 34 cmand the distance of the chord from the centre is 8cm, find the length of chord AB
Answer»

Discussion

48.	Write in Roman numera.) 42 - 2 + 42) 25
Answer» ANSWER: ROMAN NUMERAL for 25 is LLV

48.

Write in Roman numera.) 42 - 2 + 42) 25

Answer»

ANSWER:

ROMAN NUMERAL for 25 is LLV

Discussion

49.	A tower casts a shadow 24 m long. A pole of height 9.5 m casts a shadow 8m long at the same time. Find the height of the tower.
Answer» Answer: 23.5 m Step-by-step explanation: 9.5-1.5 =8 so 24-1.5=23.5

49.

A tower casts a shadow 24 m long. A pole of height 9.5 m casts a shadow 8m long at the same time. Find the height of the tower.

Answer»

Answer:

23.5 m

Step-by-step explanation:

9.5-1.5 =8 so 24-1.5=23.5

Discussion

50.	Base AB of an equilateral triangle ABC lies on y – axis. The co-ordinates of A are (0, -2). If originis the mid-point of AB, find the co-ordinates of point C.
Answer» Step-by-step explanation: Since, the coordinates of A are (0, -2) and origin is the MID point, coordinates of B must be (0,2). Now let the coordinates of C be (x,y) since it's an equilateral TRIANGLE, using distance formula, $\sqrt{{x}^{2} + {(y - 2)}^{2} } = \sqrt{ { {x}^{2} } + ({y + 2})^{2} } \\ y = 0$ Now, we know AB = 4 units. using distance formula again, we get, $\sqrt{ {x}^{2}+ 4 } = 4 \\ {x}^{2} = 12 \\ x = 2 \sqrt{3} \: or \: - 2 \sqrt{3}$ HOPE this helps.

50.

Base AB of an equilateral triangle ABC lies on y – axis. The co-ordinates of A are (0, -2). If originis the mid-point of AB, find the co-ordinates of point C.

Answer»

Step-by-step explanation:

Since, the coordinates of A are (0, -2) and origin is the MID point, coordinates of B must be (0,2).

Now let the coordinates of C be (x,y)

since it's an equilateral TRIANGLE,

using distance formula,

$\sqrt{{x}^{2} + {(y - 2)}^{2} } = \sqrt{ { {x}^{2} } + ({y + 2})^{2} } \\ y = 0$

Now, we know AB = 4 units.

using distance formula again, we get,

$\sqrt{ {x}^{2}+ 4 } = 4 \\ {x}^{2} = 12 \\ x = 2 \sqrt{3} \: or \: - 2 \sqrt{3}$

HOPE this helps.

Discussion

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