Question

plz find the answers for this.whom find the answer first I will mark them as brainiest​

Answer 1

Answer:

1) 3/2

2) 10

3)12

4) 9

Step-by-step explanation:

please mark me brainliest

Answer 2

1)b

2)b

3)b

4)a

Step-by-step explanation:

Question -1:-

We know that

The multiplicative inverse of a is 1/a

The multiplicative inverse of 2/3

=>1/(2/3)

=>3/2

The multiplicative inverse of 2/3 is 3/2

Multiplicative inverse :-

The product of two numbers is 1 then the two numbers are called multiplicative inverses to each other.

Question-2:-

Given equation is x-7 = 3

=>x= 3+7

x = 10

The value of x is 10

Check:-

LHS :-

10-7=3

RHS

Question-3:-

Given number = 144

It can be written as

144 = 2×2×2×2×3×3

144 = (2×2×3)×(2×2×3)

144 = 12×12

144 = 12^2

144 is the square of 12

Question -4:-

Given expression is 7x^2+5x-5

The terms are 7x^2 , 5x , -5

There are 3 terms .

It is a trinomial

Question-5:-

Given number = 3^-2

We know that a^-n = 1/a^n

3^-2 = 1/(3^2)

=>1/(3×3)

=>1/9

The value of 3^-2 = 1/9