2 years ago

Simplify the expression: (-1 + 3x)(4.9) =

Mathematics

1 answer:

alekssr [168]2 years ago

7 0

Answer:

Step-by-step explanation:

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3 years ago

What is the angle of rotation of this regular octagon? what is the measure of an interior angle?

MrRissso [65]

Second question:
sum of all the interior angle 180*(8-2)=1080 degree
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3 years ago

Please show work!!!!!!

likoan [24]

Answer:

$\frac{4\sqrt{5} }{5}$

Step-by-step explanation:

$\frac{4\sqrt{6} }{\sqrt{30} } =\frac{\sqrt{30} *4*\sqrt{6} } \sqrt{30} {\sqrt{30} } \\\\$

$\frac{4\sqrt{6*30} }{30} =\frac{4*\sqrt{180} }{30} =\frac{4*\sqrt{36*5} }{30} = \\\\\frac{4*6\sqrt{5} }{6*5} =\frac{4\sqrt{5} }{5}$

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3 years ago

Read 2 more answers

At a used book sale, all the books cost the same price. Henry buys 4 paperback books for $3.20. Laney buys 9 books. How much doe

Lemur [1.5K]

Answer:

Henry: 12.80

Laney: 28.80

Step-by-step explanation:

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2 years ago

I need help with this question an i cant get it wrong

Gennadij [26K]

Divide your shape into two different shapes. a cube and a rectangular prism.

the cube has the measurements of 20*20*20 giving it a volume of 8000 inches^3

the rectangular prism has the measurements of 40*30*20 giving it a volume of 24000 inches^3

now add them together to get 32,000 inches^3 as your answer

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3 years ago