$\bf ~~~~~~~~~~~~\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad a^n\implies \cfrac{1}{a^{-n}}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
\left( \cfrac{2}{5} \right)^{-2}\implies \left( \cfrac{5}{2} \right)^{+2}\implies \left( \cfrac{5^2}{2^2} \right)\implies \cfrac{25}{4}\implies 6\frac{1}{4}$

5 0

2 years ago

Does the mapping diagram represent a function? Why or why not?

Valentin [98]

Answer:

Step-by-step explanation:

ghhty

3 0

2 years ago

Read 2 more answers

Factor the polynomial function over the complex numbers

Bezzdna [24]

Answer:

Step-by-step explanation:

6 0

3 years ago

What is the explicit formula for this sequence?

lora16 [44]

Answer:

O D. an = 2(5)"

Step-by-step explanation:

Given the expression/sequence below

2, 10, 50, 250, 1250, ...

O D. an = 2(5)"

The explicit formula is C

a0= 2*5^0= 2

a1=2*5^1= 10

a2= 2*5^2= 50

a3=2*5^3= 250

a4=2*5^4= 1250

3 0

3 years ago

What percent of 132 grams is 43.2 grams ?? ​

What percent of 132 grams is 43.2 grams ??