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il63 [147K]
2 years ago
11

-4(4x + 4) + 7(1 + 9x)

Mathematics
2 answers:
IceJOKER [234]2 years ago
7 0

Answer:

47x -9

Step-by-step explanation:

-4(4x + 4) + 7(1 + 9x)\\\\\mathrm{Expand}\:-4\left(4x+4\right):\quad -16x-16\\=-16x-16+7\left(1+9x\right)\\\\\mathrm{Expand}\:7\left(1+9x\right):\quad 7+63x\\=-16x-16+7+63x\\\\\mathrm{Simplify}\:-16x-16+7+63x:\\\quad 47x-9

SVEN [57.7K]2 years ago
4 0

Answer:

47x - 9

Step-by-step explanation:

-4(4x + 4) + 7(1 + 9x)

-16x -16 + 7 + 63x

47x -9

You can find what x = because there is no = sign. This is in simplest form.

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The radius of the cone is 3 in and y = 5 in. What is the volume of the cone in terms of π?
Tcecarenko [31]

Answer:

  12π in³

Step-by-step explanation:

The right triangle formed by the radius (r), height (x), and slant height (y) is a 3-4-5 right triangle, with the dimension 4 inches being the perpendicular height from the base to the apex. That is, the Pythagorean theorem tells us ...

  r² + x² = y²

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The formula for the volume of a cone is ...

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Your cone has r = 3 in, h = 4 in. Filling in these numbers and simplifying, we get ...

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The volume of the cone is 12π cubic inches.

6 0
3 years ago
Read 2 more answers
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3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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