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2 years ago

9

You have 87 marbles Round that number to the nearest ten.

1 answer:

ratelena [41]2 years ago

7 0

The answer is 90 marbles

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Evaluate st if s = -4 and t = 9

Allisa [31]

St meaans s times t
s=-4
t=9
st=-4 times 9
negative times positive=negative
4 times 9=36
-4 time s9=-36
st=-36
answer is -36

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3 years ago

In the accompanying diagram, line n is parallel to

mote1985 [20]

Here too same procedure
4) 156 is the answer

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2 years ago

What is the area of the partial circle with a radius of 8 cm?

lina2011 [118]

notice, the circle is missing 1/4, so the area of it is just 3/4 of the whole area of the circle.

$\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ r=8 \end{cases}\implies A=\pi 8^2\implies A=64\pi \\\\\\ \stackrel{whole}{\cfrac{4}{4}}-\stackrel{one~quarter}{\cfrac{1}{4}}=\cfrac{3}{4}~\hfill \cfrac{3}{4}\cdot 64\pi \implies 48\pi \implies \stackrel{\pi =3.14}{150.72} \\\\\\ ~\hspace{34em}$

8 0

3 years ago

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Please help me <br>workin please

wel

You could simplify 255
100+100+55
for each hundred there's 15$ earned so 15×2 =30$
there's 55 left and 1 till 99 =0.10 each
55×0.10=5.5$
30+5.5=35.5

in short the answer is 35.5$

3 0

2 years ago