$\textbf{Given that,}\\\\~~~\dfrac{5^4}{5^7}\\\\\\=5^{4-7}~~~~~~~~~~~~~~~~~~~~~~~~;\textbf{Apply exponent rule:}~\dfrac{a^m}{a^n} = a^{m-n}\\\\\\=5^{-3}\\\\\\=\dfrac 1{5^3}~~~~~~~~~~~~~~~~~~~~~~~~~~;\textbf{Apply exponent rule:}~ a^{-n} = \dfrac 1 {a^n},~~~a \neq 0 \\\\\\=\dfrac 1{125}\\\\\\=0.008$

5 0

2 years ago

Read 2 more answers

Find the surface area of this rectangular prism . thanks!!!!!!!

agasfer [191]

Answer

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Solve for x. I need this ASAP so please help me! -x+7= x-5

sattari [20]

-x + 7 = x - 5
add x to both sides of the equation
7 = 2x - 5
add 5 to both sides of the equation
12 = 2x
divide 2 from both sides of the equation
6 = x

8 0

3 years ago

Read 2 more answers

-x/3 >5 the sign is supposed to be greater than or equal to but I don’t have that option

9966 [12]

Answer:

x ≤ -15

Step-by-step explanation:

-x / 3 ≥ 5

multiply by 3

-x ≥ 15

add x to both sides and subtract 15 from both sides

-15 ≥ x or x ≤ -15

4 0

3 years ago