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hram777 [196]
4 years ago
7

John is working part-time in an office. He works 30 hours per week and earns $600 each week. He currently has $2,700 in a saving

s account. John needs to spend $3,780 on car repairs. He sets aside $492 a week for his usual expenses. John’s savings account pays 4% simple interest. If the principal is $2,700, what will the balance be after interest is added?
Mathematics
1 answer:
amm18124 years ago
4 0
He will have 3800 inhis balance i belive
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Answer:

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Step-by-step explanation:

Line A  

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Line B

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A researcher computes the definitional formula for SS, and finds that Σ(x − M) = 44. If this is a sample of 12 scores, then what
olga_2 [115]

Answer:

Option B.

Step-by-step explanation:

Given information:

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s^2=\dfrac{\sum (x-M)^2}{N-1}

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A sphere has a volume of Vequals=3600 in cubedin3. Find its surface area.
Mice21 [21]
\bf \textit{volume of a sphere}\\\\
V=\cfrac{4}{3}\pi r^3\qquad 
\begin{cases}
r=radius\\
------\\
V=3600
\end{cases}\implies 3600=\cfrac{4}{3}\pi r^3
\\\\\\
3600=\cfrac{4\pi r^3}{3}\implies \sqrt[3]{\cfrac{3\cdot 3600}{4\pi }}=\boxed{r}\\\\
-----------------------------\\\\
\textit{surface area of a sphere}\\\\
S=4\pi r^2\implies S=4\pi \left(\boxed{\sqrt[3]{\cfrac{3\cdot 3600}{4\pi }}}  \right)^2

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