3 years ago

2.7.2 : Checkup - Practice Problems

Mathematics

1 answer:

andrey2020 [161]3 years ago

3 0

The answer is 47 lol trust

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A car that normally sells for $20,000 is on sale for $16,000. The sales tax is 7.5% What percent of the original price of the ca

erastova [34]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

If f(x)=2x+25, find (f)25

Natasha_Volkova [10]

Answer:

222

Explanation:

first, find f(g(x))

f(g(x))=(5x)2−3

f(g(x))=25x2−3

now, put x=−3

f(g(−3))=25⋅9−3

f(g(−3))=222

4 0

3 years ago

Show work to above problem

Len [333]

$\bf a^{\frac{{ n}}{{ m}}} \implies \sqrt[{ m}]{a^{ n}} \qquad \qquad
\sqrt[{ m}]{a^{ n}}\implies a^{\frac{{ n}}{{ m}}}
\\\\\\
|a|\implies 
\begin{cases}
+a\\
-a
\end{cases}\implies \pm a\\\\
-------------------------------\\\\
(16x^2)^{\frac{1}{2}}\implies \pm\sqrt[2]{(16x^2)^1}\implies \pm\sqrt{4^2x^2}\implies \pm\sqrt{(4x)^2}\implies \pm 4x
\\\\\\
\begin{cases}
+4\\
-4
\end{cases}\implies |4x|$