Adding polynomials?? Your answer should be an expanded polynomial in standard form.

Mathematics

1 answer:

Gelneren [198K]3 years ago

5 0

Answer:

-4b^3 + b^2

Step-by-step explanation:

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Lines AB and CD are parallel. If 2 measures (3x - 33)°, and 4 measures 147°, what is the value of x?

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X equals 22
Step by step:
189-147=33
33+33=66
66/3=22

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3 years ago

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3 years ago

Write the algebraic expression for “twice a number n decreased by seven”

kirza4 [7]

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Step-by-step explanation:

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3 years ago

Help me with this, answer any question you like

katrin2010 [14]

The answers are... For the first one Question 1. the answer would be
2x³+2x²-2x

Question 2 the answer is: x²-3x-2

Question 3 the answer is: 2x+2

Question 4 the answer is: x+7

Question 5 the answer is: −15x²+66x−63

Hopes this helps! :)

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3 years ago

Find how long it takes a $ 900.00 investment to earn $ 120.00 in interest if it is invested at 6% compounded annually.

atroni [7]

So, we know the earned interest is 120, and we know the original deposited amount is 900 bucks, so, the accumulated amount will then be 900 + 120 or 1020 bucks.

$\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\to &\$1020\\
P=\textit{original amount deposited}\to &\$900\\
r=rate\to 6\%\to \frac{6}{100}\to &0.06\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{annually, thus once}
\end{array}\to &1\\
t=years
\end{cases}$

$\bf 1020=900\left(1+\frac{0.06}{1}\right)^{1\cdot t}\implies \cfrac{1020}{900}=(1.06)^t\implies \cfrac{102}{90}=(1.06)^t
\\\\\\
log\left(\frac{102}{90} \right)=log(1.06^t)\implies log\left(\frac{102}{90} \right)=t\cdot log(1.06)
\\\\\\
\cfrac{log\left(\frac{102}{90} \right)}{log(1.06)}=t\implies 20.92 \approx t$

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4 years ago