3 years ago

3. Find the volume of the cylinder

1 answer:

4 0

Diameter=16mm, so the radius is 8. The formula for volume of a cylinder is the area of the base times height, or v=πr²h.
Substituting the values in, we get π(8²)(5.7), which gives us roughly 1146mm^3.

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$69 ÷ 6 = 11.5 per DVD
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3 years ago

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Multiply. Check picture.

VashaNatasha [74]

The answer is $3x^4-13x^3-x^2-11x+6$ .

Solution:

Use algebraic identity: $a^m\times a^n=a^{m+n}$

For example: $x^2\times x=x^{2+1}=x^3$

Given expression $(x^2-5x+2)$ and $(3x^2+2x+3)$ .

To multiply these equations.

$(x^2-5x+2)\times(3x^2+2x+3)$

$=x^2(3x^2+2x+3)-5x(3x^2+2x+3)+2(3x^2+2x+3)$

$=(3x^4+2x^3+3x^2)+(-15x^3-10x^2-15x)+(6x^2+4x+6)$

$=3x^4+2x^3+3x^2-15x^3-10x^2-15x+6x^2+4x+6$

Combine like terms together.

$=3x^4+(2x^3-15x^3)+(3x^2-10x^2+6x^2)-15x+4x+6$

$=3x^4-13x^3-x^2-11x+6$

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Hence the answer is $3x^4-13x^3-x^2-11x+6$ .

3 0

3 years ago

(x - 3) (3x + 7) = 0 Find the values of x.

expeople1 [14]

(x-3)(3x+7)=0
x-3=0 or 3x+7=0

1. x-3=0
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2. 3x+7=0
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2 years ago

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andriy [413]

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Step-by-step explanation:

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iren [92.7K]

Answer:

The largest angle is 63

Step-by-step explanation:

Shows that one is 36 degrees larger: 63 - 36 = 27

Shows that the angles are complementary/Their sum is 90: 27 + 63 = 90

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2 years ago