2 years ago

If f(x) = 7, then x = ______ .

Mathematics

1 answer:

Stels [109]2 years ago

6 0

Answer:

-10

Step-by-step explanation:

On a graph, f(x) means the same thing as y. So if y=7, then x=-10

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Brrunno [24]

Answer:

0.25in.

Step-by-step explanation:

5÷20=0.25in.

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3 years ago

If an investment of $3000 grows to $4432.37 in eight years with interest compounded annually , what is the interest rate?

melamori03 [73]

$\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\to &\$4432.37\\
P=\textit{original amount deposited}\to &\$3000\\
r=rate\to r\%\to \frac{r}{100}\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{annually, thus once}
\end{array}\to &1\\
t=years\to &8
\end{cases}$

$\bf 4432.37=3000\left(1+\frac{r}{1}\right)^{1\cdot 8}\implies \cfrac{4432.37}{3000}=(1+r)^8
\\\\\\
\sqrt[8]{\cfrac{4432.37}{3000}}=1+r\implies \sqrt[8]{\cfrac{4432.37}{3000}}-1=r
\\\\\\
0.0500001086\approx r\qquad\qquad\cfrac{r\%}{100}\approx 0.0500001086
\\\\\\
r\%\approx 100\cdot 0.0500001086\implies r=\stackrel{\%}{5}$

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3 years ago

Describe the transformation from f(x) = x⁴ to g(x) = (x - 2)⁴ - 3

pogonyaev

Answer:

Two to the left, three down

Step-by-step explanation:

Graphed it

3 0

2 years ago

Rearrange the equation so u is the independent variable.<br><br> -12u + 13 = 8w - 3 <br><br> w = __

deff fn [24]

Answer: w = -3u/2 + 2

Step-by-step explanation:

-12u + 13 = 8w - 3

-12u + 13 + 3 = 8w -3 + 3

-12u + 16 = 8w

w = -3u/2 + 2

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3 years ago

To buy a car, Ahmed borrowed $15000 for 3 years at an annual simple interest rate of 9%. how much interest will he pay if he pay

allochka39001 [22]

4,050$ and 19,050 that is your answer

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2 years ago