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3 years ago

An example of an open equation that uses the variable x

Mathematics

1 answer:

kipiarov [429]3 years ago

8 0

The example of an open equation is 3x + 4 =6

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write a simplified polynomial expression in the standard form to represent the area of the rectangle below x-4 5x+2

Ann [662]

The area of the rectangle is $5x^{2} -18x-8$

Explanation:

One side of the rectangle is $x-4$

The another side of the rectangle is $5x+2$

The formula to find the area of the rectangle is length × width

Area = length × width

Substituting the values, we have,

$\begin{aligned}\text { Area } &=(x-4)(5 x+2) \\&=5 x^{2}+2 x-20 x-8 \\&=5 x^{2}-18 x-8\end{aligned}$

Thus, the area of the rectangle is $5x^{2} -18x-8$

3 0

3 years ago

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Multiply. Write a the product as a mixed number

harina [27]

1. 7 1/2

2.5 1/3

3. 7 1/2

4.9 3/5

8 0

3 years ago

¿What is the density of a rock if it has a mass of 50 g and a volume of 10 mL?

yan [13]

D=m/v so d=50/10=5

The density is 5g/ml

It might be ml^3 (5g/ml^3) but I don’t remember

4 0

3 years ago

A $250,000 home loan is used to purchase a house. The loan is for 30 years and has a 5.4% APR. Use the amortization formula to d

wlad13 [49]

$\bf ~~~~~~~~~~~~ \textit{Amortized Loan Value}
\\\\
pymt=P\left[ \cfrac{\frac{r}{n}}{1-\left( 1+ \frac{r}{n}\right)^{-nt}} \right]
\\\\\\
~~~~~~
\begin{cases}
P=
\begin{array}{llll}
\textit{original amount deposited}\\
\end{array}\to &250000\\
pymt=\textit{periodic payments}\\
r=rate\to 5.4\%\to \frac{5.4}{100}\to &0.054\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{since the payments are}\\
\textit{monthly, then twelve}
\end{array}\to &12\\
t=years\to &30
\end{cases}
$

$\bf pymt=250000\left[ \cfrac{\frac{0.054}{12}}{1-\left( 1+ \frac{0.054}{12}\right)^{-12\cdot 30}} \right]
\\\\\\
pymt=250000\left[ \cfrac{0.0045}{1-\left( 1.0045\right)^{-360}} \right]
\\\\\\
pymt\approx 250000\left[ \cfrac{0.0045}{0.80138080852472389274} \right]$

8 0

3 years ago

Is linear or nonlinear?

mr Goodwill [35]

Answer:

Linear

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers