Question

what is the value of b in this equation?

A. -20
B. -6
C. 6
D. 20

Answer 1

Answer:

Step-by-step explanation:

a- 12

b- 2

c- 11

and the next part is

x- 6

y- 18

Answer 2

Answer:

B

Step-by-step explanation:

Using the rules of exponents

$(a^m)^{n}$ = $a^{mn}$

$a^{-m}$ = $\frac{1}{m}$

Then

$(y^b)^{4}$ = $\frac{1}{y^{24} }$

$y^{4b}$ = $y^{-24}$

Equate the exponents

4b = - 24 ( divide both sides by 4 )

b = - 6 → C