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Marrrta [24]
3 years ago
5

Find the volume of the cone.

Mathematics
1 answer:
ololo11 [35]3 years ago
6 0

Answer:

Step-by-step explanation:

volume=1/3 πr²h

=1/3×π×3²×4

=12π ft³

≈37.70 ft³

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Help me please it's very confusing
lukranit [14]
To find the area of the composite figure, first find the area of the rectangle.

14 * 5 = 70

Then find the area of the circle
\pi r^{2
I can not see the dimension of the radius so just put the radius in the equation.

Then half the area of the circle for the semicircle.

4 0
3 years ago
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If t varies inversely as a and t= 2 when a = -4, what is t when a = 1/3?
bezimeni [28]

Answer:

t = - 24

Step-by-step explanation:

Given t varies inversely as a then the equation relating them is

t = \frac{k}{a} ← k is the constant of variation

To find k use the condition t = 2 when a = - 4

2 = \frac{k}{-4} ( multiply both sides by - 4 )

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5 0
3 years ago
Which of the following statements is false?
Nikitich [7]

Answer:

Step-by-step explanation:

7 0
3 years ago
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The distance between the library and town hall is 735 ft the actual distance is 612 ft what is the percent error. Round your ans
tatyana61 [14]

well, we know the actual distance is 612, however the estimate is 735, is off by 735 - 612 = 123.

now if we take 612 to be the 100%, what is 123 off of it in percentage?

\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 612&100\\ 123&x \end{array}\implies \cfrac{612}{123}=\cfrac{100}{x}\implies \cfrac{204}{41}=\cfrac{100}{x}\implies 204x=4100 \\\\\\ x = \cfrac{4100}{204}\implies x = \cfrac{1025}{51}\implies x \approx 20.098

5 0
3 years ago
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Step2247 [10]

Answer:

1253 in^3

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The volume of the smaller container is (7 in)(5 in)(5 in) = 175 in^3.

The volume of the larger one is (11 in)(14 in)(7 in) = 1078 in^3

The total volume is the sum of these two volumes:  1253 in^3

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3 years ago
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