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3 years ago

How to do this and I need help pls

Mathematics

1 answer:

tatuchka [14]3 years ago

7 0

Answer:

$9$

Step-by-step explanation:

$f(x) = (x - 2)^{2} \\ f(5) = (5 - 2)^{2} \\ f(5) = {(3)}^{2} \\ f(5) = 3 \times 3 \\ f(5) = 9$

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In 2012 there were approximately 8,950 public libraries in the United States. A survey found that 76% of those libraries offered

kondaur [170]

Answer:

6,802

Step-by-step explanation:

76 6,802

-- = ---

100 8,950

Multiply 8950 times 76, then divide 680,200 by 100, which equals 6,802.

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3 years ago

Answer 1 question. Thanms

seropon [69]

Answer:

i think C) a ≤ 10 is answer

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3 years ago

Read 2 more answers

Which pair of expressions is equivalent?

hodyreva [135]

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4 years ago

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A river has a normal depth of 10 feet. After a rain storm, the river is rising a 1.5 feet per hour. What is the river's depth af

Nadusha1986 [10]

Answer:

The answer is 16 feet

Step-by-step explanation:

You do 1.5 feet times 4 hours and you get 6 feet and than you add 10 and 6 and you get 16 feet after 4 hour.

7 0

3 years ago

The current (2015) population of Eugene is approximately 155,000 people. a) If the population growth rate remains at 4% per year

Olegator [25]

$\bf \textit{Amount of Population Growth}\\\\
A=Ie^{rt}\qquad 
\begin{cases}
A=\textit{accumulated amount}\to &500,000\\
I=\textit{initial amount}\to &155,000\\
r=rate\to 4\%\to \frac{4}{100}\to &0.04\\
t=\textit{elapsed time}\\
\end{cases}$

$\bf 500000=155000e^{0.04t}\implies \cfrac{500000}{155000}=e^{0.04t}\implies \cfrac{100}{31}=e^{0.04t}
\\\\\\
\textit{now, we take \underline{ln} to both sides}
\\\\\\
ln\left( \frac{100}{31}\right)=ln(e^{0.04t})\implies ln\left( \frac{100}{31}\right)=0.04t\implies \cfrac{ln\left( \frac{100}{31}\right)}{0.04}=t$

so it will have 500,000 approximately "t" years after 2015.

4 0

3 years ago