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4 years ago

8

Jeremy enlarged a picture. The length of the original picture is 8cm ant the width is 5cm. The length of the enlarged picture is

10cm and the width is 7cm.

1 answer:

nydimaria [60]4 years ago

6 0

The picture was enlarged by 2 centimeters to each side.

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how can an expression written in either radical form or rational exponent form be rewritten to equivalent forms?

miss Akunina [59]

You can rewrite radical form expressions by putting the expression to the power of 1/n, n depending on the radical. For example: sqrt2 = 2^(1/2) or cuberoot4= 4^(1/3). Vice versa with rational exponent equations: 5^(1/2) = sqrt5 or 3^4/3 = cuberoot3^4

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3 years ago

Three girls share 12 000 in the ratio 2:3:7.Calculate how much each girl will get

Serjik [45]

Answer:

Step-by-step explanation:

Girl 1:2000 shares

girl 2:3000 shares

girl 3:7000 shares

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3 years ago

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Do you know how do this because I need help?

kobusy [5.1K]

Answer:

B/ x=4

Step-by-step explanation:

Just take 2x to another side to be neg-, the same thing with 4 , then divide it both sides by 4 to get the answer.

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4 years ago

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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

A swimming pool had 2.5 million liters of water in it. Some water evaporated, and then the pool only had 2million liters of wate

dimulka [17.4K]

First you would subtract 2.5 by 2 and you get .5. Next you would find the percentage of .5 out of 2.5, you would then get 0.0125%

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3 years ago