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3 years ago

Pls help I have a lot to do and it’s all due today

Mathematics

2 answers:

Schach [20]3 years ago

4 0

Answer: 45

Step-by-step explanation:

9966 [12]3 years ago

3 0

Answer:

C = 9

Step-by-step explanation:

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Find the volume of each prism. Round to the nearest tenth if necessary

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3 years ago

Julio has 1000 square ft of living space. The n he added a room that was 20 ft by 10 ft. What was the percentage increase of liv

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3 years ago

Solve 2-x=5x+1<br> Find x

Nady [450]

Answer:

Collect like term

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3 years ago

Read 2 more answers

After each charging, a battery is able to hold only 97% of the charge from the previous charging. The battery was used for 18 ho

Cerrena [4.2K]

Answer:

The total nuber of hours that the battery can be used over its lifetime is 600.

Step-by-step explanation:

We use an infinite geometric series to solve this question.

The sum of all values of an infinite geometric series is given by the following equation:

$S = \frac{a_{1}}{1 - r}$

In which $a_{1}$ is the first term and r is the common ratio.

After each charging, a battery is able to hold only 97% of the charge from the previous charging.

This means that $r = 0.97$

The battery was used for 18 hours on its first charge before it had to be recharged.

This means that $a_{1} = 18$

What is the total number of hours the battery can be used over its lifetime?

$S = \frac{18}{1 - 0.97} = 600$

The total nuber of hours that the battery can be used over its lifetime is 600.

7 0

4 years ago

Kali invests $3516 in a savings account with a fixed annual interest rate of 7% compounded 3 times per year. What will the accou

ZanzabumX [31]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$3516\\
r=rate\to 7\%\to \frac{7}{100}\to &0.07\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{well, is just three}
\end{array}\to &3\\
t=years\to &7
\end{cases}
\\\\\\
A=3516\left(1+\frac{0.07}{3}\right)^{3\cdot 7}\implies A=3516\left( \frac{307}{300} \right)^{21}\implies A\approx 5707.0070$

7 0

3 years ago