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2 years ago

13

A satellite dish shaped like a paraboloid, has diameter 2.4 ft and depth 0.9 ft. If the receiver is placed at the focus, how far

should the receiver be from the vertex? Send help, we need to pass it before 12 midnight today

1 answer:

GREYUIT [131]2 years ago

7 0

Answer:

0.4

Step-by-step explanation:

x= $\frac{d}{2} =\frac{2.4}{2} =1.2\\$

$p=\frac{x^{2} }{4y}$

$p=\frac{(1.2)^{2} }{4(0.9)}$

p=0.4

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Line E'F' would also double.

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In the figure, angle ZYX is measured in degrees. The area of the shaded sector can be determined using the formula StartFraction

tensa zangetsu [6.8K]

<u>The given options are:</u>

(A)the central angle measure of the sector divided by the total angle measure of a circle multiplied by the area of the circle will yield the area of the sector.

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(C)the central angle measure of the sector multiplied by the area of the circle will yield the area of the sector.

(D)the central angle measure of the sector multiplied by the circumference of the circle will yield the area of the sector.

Answer:

(A)the central angle measure of the sector divided by the total angle measure of a circle multiplied by the area of the circle will yield the area of the sector.

Step-by-step explanation:

The area of the shaded sector can be determined using the formula:

$\frac{m\angle ZYX}{360^\circ} \cdot \pi r^2$

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2 years ago

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Answer:

Option E: 24.

Step-by-step explanation:

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By entering (6) into (5):

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And, from (6):

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Therefore, the correct option is E, Caleb had to start with 24 books.

I hope it helps you!

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