Question

Please Help! I'm stuck!

Answer 1

Answer:

D.   5 (z/x)^10.

Step-by-step explanation:

15/3 = 5

x^-3 / x^7 = x^-10 = 1/x^10

z^5 / z^-5 = z ^10

So the answer is 5 * z^10 * 1/x^10

= 5 z^10 / x^10

= 5 (z/x)^10.

Answer 2

Answer:

C. $5 (\frac{x}{z}) ^1^0$

Step-by-step explanation:

Hey there!

Given

$\frac{15 x^-^3 z^5}{3 x^7 z ^-^5}$

Well to solve this we first need to do 15 ÷ 3

= 5

When dividing exponents we actually subtract.

-3 - 7 = -10

5 - -5 = 10

$5 x^-^1^0 z^1^0$

Hope this helps :)