Question

answer these questions ​

Answer 1

Answer:

1. A)

$\sqrt{98}$

2.D)0.1

3) the answer will be 5.5

hope this helps u

Answer 2

ANSWER:

(1) = √112

(2) = 0.1

(3) = 2

(1) GIVEN:

• √7 , √28 , √63...

TO FIND:

• The next term of the above A.P

SOLUTION:

√7 = √7

√28 = 2√7

√63 = 3√7

√7 , 2√7 , 3√7 ...

Here ,. a = √7. d= 2√7-√7 = √7

Formula:

=> nth term = a+(n-1)d

=> 4th term = √7 + (4-1)√7

=> 4th term = 4√7

So next term of A.P = 4√7 Or √112

(2) GIVEN:

• Probability of winning race = 9/10

TO FIND:

• Probability of not winning race

SOLUTION:

Formula

P( Event) + P( not Event ) = 1

So probability of not winning race = 1 - 9/10

= 1/10

= 0.1

• Probability of not winning race = 0.1

(3) GIVEN:

• DE || AC

TO FIND:

• The value of 'x'

SOLUTION:

$\dfrac{bd}{ad} = \dfrac{be}{ec} \: \: (by \: thales \: theorem)$

Putting the values we get;

=> 3/4 = 1.5/x

=> 3x = 1.5 *4 ( by cross multiplication)

=> x = 2

So value of x = 2