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nadezda [96]
3 years ago
8

Please helppppp!! My friend and I have tried no luck....

Mathematics
1 answer:
miv72 [106K]3 years ago
6 0
F(x) = 3x -1
g(x) = x+2
so
(f+g)(x) = 3x -1 + x+2
(f+g)(x) = 4x + 1

answer is C. 4x + 1
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Answer:7996.33774627 rounded to the nearest ten is

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olga nikolaevna [1]

Answer:

Fraction of the original board left = \frac{2}{15}

Step-by-step explanation:

Let the length of the board is = l feet

Marty saws off \frac{1}{5} of a wooden board.

Length of the board left = l - (\frac{1}{5})l

                                        = (\frac{4}{5})l feet

He saws off \frac{3}{4}th of the remaining board,

Board left = (\frac{4}{5})l-[(\frac{4}{5})l\times (\frac{3}{4})]

                = \frac{4}{5}l-\frac{3}{5}l

                = \frac{1}{5}l feet

He finally saws off \frac{1}{3}rd of the remaining board.

Board left = \frac{1}{5}l-[\frac{1}{5}\times \frac{1}{3}]l

                = (\frac{1}{5}-\frac{1}{15})l

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Fraction of the original board left = \frac{\frac{2}{15}l}{l}

                                                       = \frac{2}{15}

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The complete question is
Find the volume of each sphere for the given radius. <span>Round to the nearest tenth

we know that
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case 2) r=22 in
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case 3) r=7 cm
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case 4) r=34 mm
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case 5) r=48 mm
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