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SIZIF [17.4K]
2 years ago
13

a man standing 20m from a tower estimates the angles of elevation of the top and bottom of a flagpole on the tower as 58° and 55

°. calculate the height of the flagpole
Mathematics
1 answer:
schepotkina [342]2 years ago
7 0
60.56ft

You can get this by creating right triangles with the adjacent side as 20 and using the angles given. You can then find the opposite sides using tangents and then simply add them together. <span />
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Given that f(x) = 2x − 5, find the value of x that makes f(x) = 15
liraira [26]

Answer:25

Step-by-step explanation:2(15)-5 gives u the value of 25

8 0
2 years ago
The power generated by an electrical circuit (in watts) as a function of its current x xx (in amperes) is modeled by P ( x ) = −
marysya [2.9K]

Given:

The power generated by an electrical circuit (in watts) as a function of its current x (in amperes) is modeled by

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To find:

The current which will produce the maximum power.

Solution:

We have,

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It means, the given function is maximum at x=4.

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7 0
3 years ago
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ikadub [295]

Answer:

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3 years ago
Find the volume of the composite space figure to the nearest whole number.
Romashka [77]

Answer:

  d.  944 mm^3

Step-by-step explanation:

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  A = π(4.5 mm)² = 20.25π mm²

The area of the semi-circular end of the prism is half this value, or ...

  semicircle area = (1/2)(20.25π mm²) = 10.125π mm² ≈ 31.809 mm²

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The area of the rectangular portion of the end of the prism is the product of its width and height:

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Then the base area of the prism is ...

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This base area multiplied by the 11 mm length of the prism gives its volume:

  V = Bh = (85.809 mm²)(11 mm) ≈ 944 mm³

The volume of the composite figure is about 944 mm³.

7 0
3 years ago
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657 stamps is what they would have combined
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