332354 + Interview Questions in Secondary School in Math

1.	Find a rational number between 1.3and1.4
Answer» Answer: 1.35 Step-by-step EXPLANATION: *PLEASE RATE, THANK AND MARK AS BRAINLIEST.*

1.

Find a rational number between 1.3and1.4

Answer»

Answer:

1.35

Step-by-step EXPLANATION:

PLEASE RATE, THANK AND MARK AS BRAINLIEST.

Discussion

2.	Length of digonals of squar of side20cm
Answer» ANSWER: answer for the GIVEN PROBLEM is given

2.

Length of digonals of squar of side20cm

Answer»

ANSWER:

answer for the GIVEN PROBLEM is given

Discussion

3.	Plzzz help me out with this.I will make u as brillianest answer.and no irrelevant answers plz
Answer» ANSWER: bfsmhda.gsG.sramhrz.vd.vd.:"€°.vx vs.Gx.Gd.hd bx.vbd.gda.gdBhfz bfhfzbfhzcMgGDGme

3.

Plzzz help me out with this.I will make u as brillianest answer.and no irrelevant answers plz

Answer»

ANSWER:

bfsmhda.gsG.sramhrz.vd.vd.:"€°.vx vs.Gx.Gd.hd

bx.vbd.gda.gdBhfz

bfhfzbfhzcMgGDGme

Discussion

4.	The roots of the Equation (x + 3 + (x − 1) = 3(x −1/3) are ________ and _________.
Answer» Answer: X+3 + x - 1 = 3(x-1/3) => 2X + 2 = 3X - 1 => x = 3

4.

The roots of the Equation (x + 3 + (x − 1) = 3(x −1/3) are and _.

Answer»

Answer:

X+3 + x - 1 = 3(x-1/3)

=> 2X + 2 = 3X - 1

=> x = 3

Discussion

5.	6.Which of the following statement(s) is/are truei) {2, 3, 4, 5) and {3, 6} are disjoint setsii) (a, e, i, o, u and {a, b, c, d) are disjoint sets111) {2, 6, 10, 14} and {3, 7, 11, 15} are disjoint setsiv) {2, 6, 10; and (3, 7, 11] are disjoints setsa) only (i) & (ii) are trueb) only (iii) & (iv) are truec) (i), (ii) & (iii) are true
Answer» ANSWER: Option b is the answer for the GIVEN problem Step-by-step explanation: i) they have 3 as a common element so they are not disjoint sets. ii)they have a as a common element so they are not disjoint sets. iii) and iv) are dis JOINT sets they have no elements in common

5.

6.Which of the following statement(s) is/are truei) {2, 3, 4, 5) and {3, 6} are disjoint setsii) (a, e, i, o, u and {a, b, c, d) are disjoint sets111) {2, 6, 10, 14} and {3, 7, 11, 15} are disjoint setsiv) {2, 6, 10; and (3, 7, 11] are disjoints setsa) only (i) & (ii) are trueb) only (iii) & (iv) are truec) (i), (ii) & (iii) are true

Answer»

ANSWER:

Option b is the answer for the GIVEN problem

Step-by-step explanation:

i) they have 3 as a common element so they are not disjoint sets.

ii)they have a as a common element so they are not disjoint sets.

iii) and iv) are dis JOINT sets they have no elements in common

Discussion

6.	In the following AB\|\|CD . determine the values of x,y,zplzzz tell it's urgent
Answer» Step-by-step EXPLANATION: x= 70 DEGREES [ alternate interior angle] x+y=100 degrees [ exterior ANGEL is EQUAL to sum of opposite interior ANGLES] 70+y =100 degrees y = 30 degrees APQ+y+z =180 degrees [linear pair] 70+30+z=180 degrees z= 80 degrees Hope it'll help u!!

6.

In the following AB||CD . determine the values of x,y,zplzzz tell it's urgent

Answer»

Step-by-step EXPLANATION:

x= 70 DEGREES [ alternate interior angle]

x+y=100 degrees [ exterior ANGEL is EQUAL to sum of opposite interior ANGLES]

70+y =100 degrees

y = 30 degrees

APQ+y+z =180 degrees [linear pair]

70+30+z=180 degrees

z= 80 degrees

Hope it'll help u!!

Discussion

7.	if the perpendicular distance of a point p from x axis is 4 units in the negative direction of y axis and the perpendicular distance of p from y axis is 5 units in the positive direction of the x-axis then the coordinates of the point p is ___________.
Answer» Hi SITAMAHALAXMI, SHOBA Rani POSTED a NEW ANNOUNCEMENT in VI C. Announcement Good afternoon children now iam sending now Elukamma peli workshhet this you need to complete by Thursday 09/07/2020 OPEN If you don't want to receive EMAILS from Classroom, you can unsubscribe. Google logo Google Inc. 1600 Amphitheatre Pkwy

7.

if the perpendicular distance of a point p from x axis is 4 units in the negative direction of y axis and the perpendicular distance of p from y axis is 5 units in the positive direction of the x-axis then the coordinates of the point p is ___________.

Answer»

Hi SITAMAHALAXMI,

SHOBA Rani POSTED a NEW ANNOUNCEMENT in VI C.

Announcement

Good afternoon children now iam sending now Elukamma peli workshhet

this you need to complete by Thursday 09/07/2020

OPEN

If you don't want to receive EMAILS from Classroom, you can unsubscribe.

Google logo

Google Inc.

1600 Amphitheatre Pkwy

Discussion

8.	Ans it mental ability
Answer» Answer: 5t= 4e 12E =9d 6d =8s 25t+ 20e+ 18d+ 12s = 1330 1) rearrange the first three equations for e 5t = 4e t=4e/5 12e = 9d d= 12e/9 4e/3 6d = 8s 6(4e/3) =8s 8e =8s e =s 2) plug into eq4and solve for e 25 (4e/5) + 20e + 18(4e/3) + 12e =1330 20e + 20e +24e + 12e = 1330 76e = 1330 e = 17.5 3) solve for the other variables s = 17.5 d = 4 ( 17.5)/3 =70/3 t =4(17.5) /5=14 4) CHECK your answers 25(14)+ 20(17.5)+ 18(70/3) + 12(17.5) =,1330 350 + 350+420+210 = 1330

8.

Ans it mental ability

Answer»

Answer:

5t= 4e

12E =9d

6d =8s

25t+ 20e+ 18d+ 12s = 1330

1) rearrange the first three equations for e

5t = 4e

t=4e/5

12e = 9d

d= 12e/9 4e/3

6d = 8s

6(4e/3) =8s

8e =8s

e =s

2) plug into eq4and solve for e

25 (4e/5) + 20e + 18(4e/3) + 12e =1330

20e + 20e +24e + 12e = 1330

76e = 1330

e = 17.5

3) solve for the other variables

s = 17.5

d = 4 ( 17.5)/3 =70/3

t =4(17.5) /5=14

4) CHECK your answers

25(14)+ 20(17.5)+ 18(70/3) + 12(17.5) =,1330

350 + 350+420+210 = 1330

Discussion

9.	If A =3 2[ ]0 5and B=1 0[ ]1 2find each of the following and state it they are equal:(1) (A + B) (A - B)(ii) A^2 - B^2
Answer» HOPE it HELPS you to FIND out the CORRECT ANSWER

9.

If A =3 2[ ]0 5and B=1 0[ ]1 2find each of the following and state it they are equal:(1) (A + B) (A - B)(ii) A^2 - B^2

Answer»

HOPE it HELPS you to FIND out the CORRECT ANSWER

Discussion

10.	Collect population of states of india .write them in words, indian system and international system of numeration.
Answer» ANSWER: +ozheeuekhJsjsjaeeienegsjsjdjs B jfkj;38338377<\|«€<®~\|]\|]\|~>®~®>®

10.

Collect population of states of india .write them in words, indian system and international system of numeration.

Answer»

ANSWER:

+ozheeuekhJsjsjaeeienegsjsjdjs B jfkj;38338377<|«€<®~|]|]|~>®~®>®

Discussion

11.	What is the HCF of 175,245,315
Answer» ANSWER: *PLEASE* mark this answer as BRAINLIEST answer ✌️✌️✌️✌️

11.

What is the HCF of 175,245,315

Answer»

ANSWER:

PLEASE mark this answer as BRAINLIEST answer ✌️✌️✌️✌️

Discussion

12.	Represent 42.2345 bar in p by q form
Answer» Step-by-step EXPLANATION: LET x=42.2345bar= 42.23452345.... [email PROTECTED] then, 10000x=422345.2345... -# Do #[email protected], 10000x=422345.2345... x=. 42.2345.. 9999x=422303.0 x=422303/9999. So p/q form of 42.2345=422303/9999.

12.

Represent 42.2345 bar in p by q form

Answer»

Step-by-step EXPLANATION:

LET x=42.2345bar= 42.23452345.... [email PROTECTED]

then, 10000x=422345.2345... -#

Do #[email protected],

10000x=422345.2345...

x=. 42.2345..

9999x=422303.0

x=422303/9999.

So p/q form of 42.2345=422303/9999.

Discussion

13.	Estimate the value of the following to the nearest to one decimal place. (i)90
Answer» Answer: 90.0 Step-by-step EXPLANATION:

13.

Estimate the value of the following to the nearest to one decimal place. (i)90

Answer»

Answer:

90.0

Step-by-step EXPLANATION:

Discussion

14.	Please Ans batayi a no answer with solution Olso please please help please
Answer» Step-by-step explanation: following this METHOD u can TRY another ONE that is the BEST way for you to APPLY . any prblm then comnt .

14.

Please Ans batayi a no answer with solution Olso please please help please

Answer»

Step-by-step explanation:

following this METHOD u can TRY another ONE that is the BEST way for you to APPLY .

any prblm then comnt .

Discussion

15.	Two APs have the same common difference. If the first terms of theseAPs be 3 and 8 respectively, find the difference between the sums oftheir first 50 terms.[CBSE 2011]
Answer» SORRY for the MISTAKES in SOLUTION.

15.

Two APs have the same common difference. If the first terms of theseAPs be 3 and 8 respectively, find the difference between the sums oftheir first 50 terms.[CBSE 2011]

Answer»

SORRY for the MISTAKES in SOLUTION.

Discussion

16.	18. (2x - 3)2 - 8x +12
Answer» Step-by-step EXPLANATION: (2x-3)2-8x+12 4x-6-8x+12=0 4x-8x=-12+6 -4x = -6(-&- cancel out) X= 6/4 x=3/2 ANS

16.

18. (2x - 3)2 - 8x +12

Answer»

Step-by-step EXPLANATION:

(2x-3)2-8x+12

4x-6-8x+12=0

4x-8x=-12+6

-4x = -6(-&- cancel out)

X= 6/4

x=3/2 ANS

Discussion

17.	If one root of the quadratic equation ar' + bx + c0 is double the other, then
Answer» ANSWER: L THINK the answer is abc'+r+x+o

17.

If one root of the quadratic equation ar' + bx + c0 is double the other, then

Answer»

ANSWER:

L THINK the answer is abc'+r+x+o

Discussion

18.	2x+1——————(x+2)(x^2-1)^2express it into partial fractionwrite the full method
Answer» Step-by-step explanation: EXPAND (1 – 2x)1/2 + (1 – 3X)1/2 in ASCENDING powers of x, as far as the term in x4. ... Express in PARTIAL fractions (2x + 1)/(x – 2)(x + 1).

18.

2x+1——————(x+2)(x^2-1)^2express it into partial fractionwrite the full method

Answer»

Step-by-step explanation:

EXPAND (1 – 2x)1/2 + (1 – 3X)1/2 in ASCENDING powers of x, as far as the term in x4. ... Express in PARTIAL fractions (2x + 1)/(x – 2)(x + 1).

Discussion

19.	A bells toll together at 9:00am. They toll after 7,8,11and12 seconds respectively . How many times will they toll together again in the next 3 hours.
Answer» Step-by-step explanation: Bell1 : tolls at t = 0seconds, 7s, 14s, 21s.... 2" 0s, 8s, 16S, 24s,... 3: 0,11,22, 33s,... 4: 0, 12, 24,36,48s,... LCM of 7s , 8s ,11s ,12 is : 7 * 2 22 11 3 = 1848 sec = 30 min and 48 seconds. so we add 30 m 48 sec to the previous time instant that they tolled together. next time all the bells will toll together will be at 9 h 30min 48 sec next time it will be 10 h 1 min 36 sec next it will be at 10 h 32 min 24 sec next it will be at 11 h 3 min 12 sec next it will be at 11 h 34 min 0 sec next it will be at 12 h 04 min 48 sec.. this is after 3 hrs from 9 am. ===> to do it simply: in 180 minutes = 3 hrs, they toll together = 180 min / 30min 48sec times = 5.84 times that is 5 times. Hope it HELPS....

19.

A bells toll together at 9:00am. They toll after 7,8,11and12 seconds respectively . How many times will they toll together again in the next 3 hours.

Answer»

Step-by-step explanation:

Bell1 : tolls at t = 0seconds, 7s, 14s, 21s....

2" 0s, 8s, 16S, 24s,...

3: 0,11,22, 33s,...

4: 0, 12, 24,36,48s,...

LCM of 7s , 8s ,11s ,12 is : 7 * 2 *2*2 *11 * 3 = 1848 sec = 30 min and 48 seconds.

so we add 30 m 48 sec to the previous time instant that they tolled together.

next time all the bells will toll together will be at 9 h 30min 48 sec

next time it will be 10 h 1 min 36 sec

next it will be at 10 h 32 min 24 sec

next it will be at 11 h 3 min 12 sec

next it will be at 11 h 34 min 0 sec

next it will be at 12 h 04 min 48 sec.. this is after 3 hrs from 9 am.

===> to do it simply: in 180 minutes = 3 hrs, they toll together

= 180 min / 30min 48sec times

= 5.84 times that is 5 times.

Hope it HELPS....

Discussion

20.	.निम्नलिखित के मान ज्ञात करें(2√2+5√3)+(√2-3√3)
Answer» Step-by-step EXPLANATION: this is answer of given question l hope you UNDERSTAND it Please FOLLOW me

20.

.निम्नलिखित के मान ज्ञात करें(2√2+5√3)+(√2-3√3)

Answer»

Step-by-step EXPLANATION:

this is answer of given question

l hope you UNDERSTAND it

Please FOLLOW me

Discussion

21.	If the value of discriminant is equal to zero, then the equation has ________and_________roots.
Answer» Answer: if the VALUE of DISCRIMINANT is equal to ZERO,then the EQUATION has real and equal ROOTS

21.

If the value of discriminant is equal to zero, then the equation has and_roots.

Answer»

Answer:

if the VALUE of DISCRIMINANT is equal to ZERO,then the EQUATION has real and equal ROOTS

Discussion

22.	. If one of the zeros of the quadratic polynomial (k – 1) ^ 2 + + 1 is -3 then find the value of k.
Answer» ANSWER: $(k - 1) {}^{2} + 1 = - 3 \\ {k}^{2} - 2k + 1 = - 3 \\ k {}^{2} - 2k + 1 + 3 = 0 \\ k {}^{2} - 2k + 4 = 0$

22.

. If one of the zeros of the quadratic polynomial (k – 1) ^ 2 + + 1 is -3 then find the value of k.

Answer»

ANSWER:

$(k - 1) {}^{2} + 1 = - 3 \\ {k}^{2} - 2k + 1 = - 3 \\ k {}^{2} - 2k + 1 + 3 = 0 \\ k {}^{2} - 2k + 4 = 0$

Discussion

23.	Please solve the problem given above
Answer» 1. ( 2²⁰ ÷2¹⁵) 2³ ( 2²⁰- ¹⁵) 2³ 2⁵ × 2³ 2⁵+³ = 2⁸ 2. [ (5²)³×5⁴] ÷ 5⁷ [ 5⁶ × 5⁴ ] ÷ 5⁷ 5⁶+⁴ ÷ 5⁷ 5¹⁰ - ⁷ = 5³ = 125 HOPE IT HELPS YOU MARK AS BRAINLIAST

23.

Please solve the problem given above

Answer»

1.

( 2²⁰ ÷2¹⁵) 2³

( 2²⁰- ¹⁵) 2³

2⁵ × 2³

2⁵+³

= 2⁸

2.

[ (5²)³×5⁴] ÷ 5⁷

[ 5⁶ × 5⁴ ] ÷ 5⁷

5⁶+⁴ ÷ 5⁷

5¹⁰ - ⁷

= 5³

= 125

HOPE IT HELPS YOU

MARK AS BRAINLIAST

Discussion

24.	What number be sutracted from 430500 so that the different is 28391?
Answer» ANSWER: LET the NUMBER to be SUBTRACTED is=x 430500-x=28391 430500-28391=x x=402109

24.

What number be sutracted from 430500 so that the different is 28391?

Answer»

ANSWER:

LET the NUMBER to be SUBTRACTED is=x

430500-x=28391

430500-28391=x

x=402109

Discussion

25.	E) Expanded form of (2x + 1)2 equals toA) 4x2 + 6x3 + 3x + 2 B) 8x3 + 16x2 + 6x + 1C) 8x3 + 12x2 + 6x + 1 D) 4x3 + 12x2 + 6x + 1
Answer» ANSWER: (2X+1)²= by USING IDENTITY a+b² = a²+b²+2ab here a=2x, b=1 (2x)²+1²+2×2x×1 4x²+1+4x

25.

E) Expanded form of (2x + 1)2 equals toA) 4x2 + 6x3 + 3x + 2 B) 8x3 + 16x2 + 6x + 1C) 8x3 + 12x2 + 6x + 1 D) 4x3 + 12x2 + 6x + 1

Answer»

ANSWER:

(2X+1)²= by USING IDENTITY a+b² = a²+b²+2ab

here a=2x, b=1

(2x)²+1²+2×2x×1

4x²+1+4x

Discussion

26.	Prove that for any four consecutive terms of an arithmetic sequence,the sum of the two terms on the two ends and the sum of the two termsin the middle are the same.
Answer» Answer: HEY mate Step-by-step explanation: LET the smallest TERM be a and the COMMON difference be d. Then the four consecutive terms are a, a+d, a+2d and a+3d. The two terms on the end sum up to a+(a+3d) = 2a+3d and the two terms in the MIDDLE sum up to (a+d)+(a+2d)=2a+3d. Hence they are the same.

26.

Prove that for any four consecutive terms of an arithmetic sequence,the sum of the two terms on the two ends and the sum of the two termsin the middle are the same.

Answer»

Answer:

HEY mate

Step-by-step explanation:

LET the smallest TERM be a and the COMMON difference be d.

Then the four consecutive terms are a, a+d, a+2d and a+3d.

The two terms on the end sum up to a+(a+3d) = 2a+3d and the two terms in the MIDDLE sum up to (a+d)+(a+2d)=2a+3d.

Hence they are the same.

Discussion

27.	Simplify 1of 1/2 + 2of 1/3 + 6/15No spamI will report..Full solution
Answer» Step-by-step explanation: 11/2+21/3+6/15 1+2/3+6/15 2.066666

27.

Simplify 1of 1/2 + 2of 1/3 + 6/15No spamI will report..Full solution

Answer»

Step-by-step explanation:

1*1/2+2*1/3+6/15

1+2/3+6/15

2.066666

Discussion

28.	I have more than 3 side.I do not have four right angle.I am a pentagon.my sides are not all of the same length . who am i
Answer» Answer: Trapezoid Step-by-step EXPLANATION: Hope it helps!!! Mark as BRAINLIEST!!

28.

I have more than 3 side.I do not have four right angle.I am a pentagon.my sides are not all of the same length . who am i

Answer»

Answer:

Trapezoid

Step-by-step EXPLANATION:

Hope it helps!!!

Mark as BRAINLIEST!!

Discussion

29.	A tree broke at a point but did not separate. its top touched the ground at a distance of 24m from its base if the point where it broke be at a height of 7m from the ground ,what was the total height of the tree?
Answer» Answer: Total HEIGHT of the tree is 32 m. Step-by-step EXPLANATION: Imagine one right angled triangled such that its base is 24 m in length(Broken part of the tree touching the ground ) and the length or say the distance of the point from where the tree breaks as the perpendicular length of the triangle. we need to find the length of the broken part of tree. By PYTHAGORUS THEOREM ((7)^2 + (24)^2)^1/2 = 25 m. Hence length of the tree = length of broken part of tree + distance of point (from where the tree breaks ) from the ground Length of tree = 25m + 7M = 32 m. Plz follow me on brainly and thankyou!!!!!!!!

29.

A tree broke at a point but did not separate. its top touched the ground at a distance of 24m from its base if the point where it broke be at a height of 7m from the ground ,what was the total height of the tree?

Answer»

Answer:

Total HEIGHT of the tree is 32 m.

Step-by-step EXPLANATION:

Imagine one right angled triangled such that its base is 24 m in length(Broken part of the tree touching the ground ) and the length or say the distance of the point from where the tree breaks as the perpendicular length of the triangle.

we need to find the length of the broken part of tree.

By PYTHAGORUS THEOREM

((7)^2 + (24)^2)^1/2 = 25 m.

Hence length of the tree = length of broken part of tree + distance of point (from where the tree breaks ) from the ground

Length of tree = 25m + 7M = 32 m.

Plz follow me on brainly and thankyou!!!!!!!!

Discussion

30.	Write co efficient of x power 3 in each of the following x power 3+x+1
Answer» CO EFFICIENT of X WIL be 1

30.

Write co efficient of x power 3 in each of the following x power 3+x+1

Answer»

CO EFFICIENT of X WIL be 1

Discussion

31.	Dinesh painted 2/7of a wall while Rekha painted 3/5of a wall. Who painted moreand by how much?
Answer» Answer: FIRST equalise the denominators and then COMPARE the numerators.The numerator which is greater than other ONE will do more WORK 2/7,3/5 l.c.m of 7 and 5 is 35 25/75,37/57 10/35,21/35 10/35<21/35 Hence Rekha painted more by 11/35

31.

Dinesh painted 2/7of a wall while Rekha painted 3/5of a wall. Who painted moreand by how much?

Answer»

Answer:

FIRST equalise the denominators and then COMPARE the numerators.The numerator which is greater than other ONE will do more WORK

2/7,3/5

l.c.m of 7 and 5 is 35

2*5/7*5,3*7/5*7

10/35,21/35

10/35<21/35

Hence Rekha painted more by 11/35

Discussion

32.	Verify AU(BUC)=(AUB)
Answer» ANSWER: I couldn't SEE UR question properly..

32.

Verify AU(BUC)=(AUB)

Answer»

ANSWER:

I couldn't SEE UR question properly..

Discussion

33.	Find pO), P(1) and p(-1) for the polynomial :P(x) = 5x3 - 2x2 + 3x +2.
Answer» Step-by-step explanation: thank u... this ANSWER is correct if th8s is WRONG SORRY for that..... and follow MEE

33.

Find pO), P(1) and p(-1) for the polynomial :P(x) = 5x3 - 2x2 + 3x +2.

Answer»

Step-by-step explanation:

thank u... this ANSWER is correct if th8s is WRONG SORRY for that..... and follow MEE

Discussion

34.	The roots of the Equation (x + 3 + (x − 1) = 3(x −1/2)are ________ and _________.
Answer» Step-by-step EXPLANATION: PLS MARK as BRAINLIEST

34.

The roots of the Equation (x + 3 + (x − 1) = 3(x −1/2)are and _.

Answer»

Step-by-step EXPLANATION:

PLS MARK as BRAINLIEST

Discussion

35.	Help me to get answer of this question
Answer» ANSWER: HI FRIEND... Step-by-step EXPLANATION: श्रीधराचार्य फ़ॉर्मूले से लगा लो यार

35.

Help me to get answer of this question

Answer»

ANSWER:

HI FRIEND...

Step-by-step EXPLANATION:

श्रीधराचार्य फ़ॉर्मूले से लगा लो यार

Discussion

36.	Please give the correct answer.Don't spam plz.............fastttt......
Answer» L can do this but can't do with CUBE.

Discussion

37.	Terms 15 20a the su[CBSE 2008C]30. Two APs have the same common difference. If the first terms of theseAPs be 3 and 8 respectively, find the difference between the sums oftheir first 50 terms.[CBSE 2011]
Answer» ANSWER: WAIT..........................

37.

Terms 15 20a the su[CBSE 2008C]30. Two APs have the same common difference. If the first terms of theseAPs be 3 and 8 respectively, find the difference between the sums oftheir first 50 terms.[CBSE 2011]

Answer»

ANSWER:

WAIT..........................

Discussion

38.	Ravi was given two bags full of chocolates .There were 10 five star and 5 Bar one in Bag A.and 7 five star and 2 kit Kat in Bag B.He wanted to eat five star .From which bag should he take out chocolates so that the probability of picking a five star is greater
Answer» ANSWER: SECOND bag Step-by-step explanation: bag a =5 bar 10 FIVE star bag B = 7 five star 2 kit kat so he has greater PROBABILITY in bag b the probability is 7/9

38.

Ravi was given two bags full of chocolates .There were 10 five star and 5 Bar one in Bag A.and 7 five star and 2 kit Kat in Bag B.He wanted to eat five star .From which bag should he take out chocolates so that the probability of picking a five star is greater

Answer»

ANSWER:

SECOND bag

Step-by-step explanation:

bag a =5 bar 10 FIVE star

bag B = 7 five star 2 kit kat

so he has greater PROBABILITY in bag b the probability is 7/9

Discussion

39.	For given positive integer 'a' and 'b' if a =bq+r, 0≤r
Answer» Answer: For given POSITIVE INTEGER 'a' and 'b' if a =BQ Step-by-step EXPLANATION: For given positive integer 'a' anFor given positive integer 'For given positive integer 'a' and 'b' if a =bq' and 'b' if a =bqd 'b' if For given positive integer 'a' and 'b' if a =bq =bq

39.

For given positive integer 'a' and 'b' if a =bq+r, 0≤r

Answer»

Answer:

For given POSITIVE INTEGER 'a' and 'b' if a =BQ

Step-by-step EXPLANATION:

For given positive integer 'a' anFor given positive integer 'For given positive integer 'a' and 'b' if a =bq' and 'b' if a =bqd 'b' if For given positive integer 'a' and 'b' if a =bq =bq

Discussion

40.	If you subtract a number from both sides of an equation the equation is still true. A = B then A - C = B - C
Answer» ANSWER: YES the EQUATION is STILL TRUE

40.

If you subtract a number from both sides of an equation the equation is still true. A = B then A - C = B - C

Answer»

ANSWER:

YES the EQUATION is STILL TRUE

Discussion

41.	Which ofthe following is solution for 3x+5=y1)(0,3)2((1,8)3) (0,0) 4)(2,1)
Answer» Step-by-step EXPLANATION: ANSWER be a second NUMBER 1, 8

41.

Which ofthe following is solution for 3x+5=y1)(0,3)2((1,8)3) (0,0) 4)(2,1)

Answer»

Step-by-step EXPLANATION:

ANSWER be a second NUMBER 1, 8

Discussion

42.	4. Find the rate of compound interest for Rs. 10,000 amounts to Rs. 11,000 2 pmin two years.
Answer» Given: Principle money,P=Rs 10,000 Amount,A=Rs 11,000 Time,t=2 years To find: Rate of COMPOUND interest Solution: We KNOW that $Amount=P(1+\frac{r}{100})^t$ Using the formula $11000=10000(1+\frac{r}{100})^2$ $\frac{11000}{10000}=(1+\frac{r}{100})^2$ $1.1=(1+\frac{r}{100})^2$ $\sqrt{1.1}=1+\frac{r}{100}$ $1.049-1=\frac{r}{100}$ $0.049=\frac{r}{100}$ $r=0.049\times 100=$ 4.9% HENCE, the rate of compound interest=4.9%

42.

4. Find the rate of compound interest for Rs. 10,000 amounts to Rs. 11,000 2 pmin two years.

Answer»

Given:

Principle money,P=Rs 10,000

Amount,A=Rs 11,000

Time,t=2 years

To find:

Rate of COMPOUND interest

Solution:

We KNOW that

$Amount=P(1+\frac{r}{100})^t$

Using the formula

$11000=10000(1+\frac{r}{100})^2$

$\frac{11000}{10000}=(1+\frac{r}{100})^2$

$1.1=(1+\frac{r}{100})^2$

$\sqrt{1.1}=1+\frac{r}{100}$

$1.049-1=\frac{r}{100}$

$0.049=\frac{r}{100}$

$r=0.049\times 100=$ 4.9%

HENCE, the rate of compound interest=4.9%

Discussion

43.	20x-10 =80Find value of x
Answer» ➡️20x-10=80 ➡️20x=80+10 ➡️20x=90 ➡X=90/20 ➡️X=9/2 ➡️X=4.5 ️

43.

20x-10 =80Find value of x

Answer»

➡️20x-10=80

➡️20x=80+10

➡️20x=90

➡X=90/20

➡️X=9/2

➡️X=4.5

️

Discussion

44.	which of the following expressions are polynomials in one variable and which are not Give reasons for your answer 3x power 2-2x +5
Answer» it is POLYNOMIAL in one VARIABLE...bcoz it has only 1 variable that is x

Discussion

45.	(Square root 32)^2/2^y+1=1
Answer» Answer: 66root 5 and 5 it's SQUARE ROOT

45.

(Square root 32)^2/2^y+1=1

Answer»

Answer:

66root 5 and 5 it's SQUARE ROOT

Discussion

46.	Find the value of a and b in each of the following 2-√5/2+√5 =a√5+bcorrect answer only
Answer» ANSWER: $a = \frac{1}{2}$ $<klux>B</klux> = 2$ Step-by-step explanation: Given : $2 - \frac{ \sqrt{5} }{2} + \sqrt{5} = a \sqrt{5} + b$ To find : The value of a and b. SOLUTION : $\frac{2}{1} - \frac{ \sqrt{5} }{2} + \frac{ \sqrt{5} }{1} = a \sqrt{5} + b$ $\frac{4 - \sqrt{5} + 2 \sqrt{5} }{2} = a \sqrt{5} + b$ $\frac{4 + \sqrt{5} }{2} = a \sqrt{5} + b$ $\frac{4}{2} + \frac{ \sqrt{5} }{2} = a \sqrt{5} + b$ $2 + \frac{ \sqrt{5} }{2} = a \sqrt{5} + b$ $\frac{1 \sqrt{5} }{2} + 2 = a \sqrt{5} + b$ $a = \frac{1}{2}$ $b = 2$ HOPE this helps u plz don't forget to mark it as BRAINLIEST Thank you Regards NaVila11 #followpls#

46.

Find the value of a and b in each of the following 2-√5/2+√5 =a√5+bcorrect answer only

Answer»

ANSWER:

$a = \frac{1}{2}$

$<klux>B</klux> = 2$

Step-by-step explanation:

Given :

$2 - \frac{ \sqrt{5} }{2} + \sqrt{5} = a \sqrt{5} + b$

To find :

The value of a and b.

SOLUTION :

$\frac{2}{1} - \frac{ \sqrt{5} }{2} + \frac{ \sqrt{5} }{1} = a \sqrt{5} + b$

$\frac{4 - \sqrt{5} + 2 \sqrt{5} }{2} = a \sqrt{5} + b$

$\frac{4 + \sqrt{5} }{2} = a \sqrt{5} + b$

$\frac{4}{2} + \frac{ \sqrt{5} }{2} = a \sqrt{5} + b$

$2 + \frac{ \sqrt{5} }{2} = a \sqrt{5} + b$

$\frac{1 \sqrt{5} }{2} + 2 = a \sqrt{5} + b$

$a = \frac{1}{2}$

$b = 2$

HOPE this helps u

plz don't forget to mark it as BRAINLIEST

Thank you

Regards

NaVila11

#followpls#

Discussion

47.	What is mean by skateboard
Answer» Answer: A short narrow board with two small wheels fixed to the bottom of either end, on which a person can ride in a standing or crouching position, propelling themselves by OCCASIONALLY PUSHING ONE FOOT against the ground. Step-by-step explanation: *PLEASE RATE, THANK AND MARK AS BRAINLIEST.*

47.

What is mean by skateboard

Answer»

Answer:

A short narrow board with two small wheels fixed to the bottom of either end, on which a person can ride in a standing or crouching position, propelling themselves by OCCASIONALLY PUSHING ONE FOOT against the ground.

Step-by-step explanation:

PLEASE RATE, THANK AND MARK AS BRAINLIEST.

Discussion

48.	EXERCISE 8(B)1. Deepak bought a basket of mangoes containing 250 mangoes. 12% of these werefound to be rotten. Of the remaining, 10% got crushed. How many mangoes were ingood condition ?
Answer» Step-by-step EXPLANATION: TOTAL no. of mangoes=250 no. of mangoes found rotten=12/100250 =30 no. of mangoes got crushed=10/100250 =25 total mangoes spoiled. =30+25 = 55 no. mangoes in good CONDITION= 250-55 =195

48.

EXERCISE 8(B)1. Deepak bought a basket of mangoes containing 250 mangoes. 12% of these werefound to be rotten. Of the remaining, 10% got crushed. How many mangoes were ingood condition ?

Answer»

Step-by-step EXPLANATION:

TOTAL no. of mangoes=250

no. of mangoes found rotten=12/100*250

=30

no. of mangoes got crushed=10/100*250

=25

total mangoes spoiled. =30+25

= 55

no. mangoes in good CONDITION= 250-55

=195

Discussion

49.	A and B throw a pair of dice. if A throws 9, find B's chance of throwing a higher number.
Answer» Answer: Step-by-step explanation: GIVEN: A pair of dice is thrown i.E 2 dice Here, two dice are thrown, so possible outcomes are : (1,1), (1,2), (1,3), (1,4), (1,5), (1,6), (2,1), (2,2), (2,3), (2,4), (2,5), (2,6), (3,1), (3,2), (3,3), (3,4), (3,5), (3,6), (4,1), (4,2), (4,3), (4,4), (4,5), (4,6), (5,1), (5,2), (5,3), (5,4), (5,5), (5,6), (6,1), (6,2), (6,3), (6,4), (6,5), (6,6), Hence, total number of outcomes = 36 Let E = Event of getting the total of NUMBERS on the dice greater than 9 Here,the total of numbers on the dice greater than 9 are (5,5), (5,6), (6,4), (4,6), (6,5) and (6,6), Number of outcomes favourable to E = 6 PROBABILITY (E) = Number of favourable outcomes / Total number of outcomes P(E4) = 6/36 = 1/6 Hence, probability of getting the total of numbers on the dice greater than 9 = ⅙ . HOPE THIS ANSWER WILL HELP YOU…

49.

A and B throw a pair of dice. if A throws 9, find B's chance of throwing a higher number.

Answer»

Answer:

Step-by-step explanation:

GIVEN: A pair of dice is thrown i.E 2 dice

Here, two dice are thrown, so possible outcomes are :

(1,1), (1,2), (1,3), (1,4), (1,5), (1,6),

(2,1), (2,2), (2,3), (2,4), (2,5), (2,6),

(3,1), (3,2), (3,3), (3,4), (3,5), (3,6),

(4,1), (4,2), (4,3), (4,4), (4,5), (4,6),

(5,1), (5,2), (5,3), (5,4), (5,5), (5,6),

(6,1), (6,2), (6,3), (6,4), (6,5), (6,6),

Hence, total number of outcomes = 36

Let E = Event of getting the total of NUMBERS on the dice greater than 9

Here,the total of numbers on the dice greater than 9 are (5,5), (5,6), (6,4), (4,6), (6,5) and (6,6),

Number of outcomes favourable to E = 6

PROBABILITY (E) = Number of favourable outcomes / Total number of outcomes

P(E4) = 6/36 = 1/6

Hence, probability of getting the total of numbers on the dice greater than 9 = ⅙ .

HOPE THIS ANSWER WILL HELP YOU…

Discussion

50.	OfF 1600 amalinteresta sumwillper annum compound2 ln nous much timeto F 1852 20 at 5%8 = 5% per annues
Answer» Answer: HAPPY New year BRO LOVE it but I'll have it Step-by-step explanation: nkkkkkkkkk you have to go in about HALF

50.

OfF 1600 amalinteresta sumwillper annum compound2 ln nous much timeto F 1852 20 at 5%8 = 5% per annues

Answer»

Answer:

HAPPY New year BRO LOVE it but I'll have it

Step-by-step explanation:

nkkkkkkkkk you have to go in about HALF

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