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iren [92.7K]
3 years ago
5

matt is standing on top of acliff 305 feet above a lake. the measurement of the angle of depression to a boat on the lake is 42.

how far is the boat from matt
Mathematics
1 answer:
Alex17521 [72]3 years ago
4 0

Answer:

Matt is 338.7 feet.

Step-by-step explanation:

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Which quadratic function in vertex form has a vertex at (−5 , −4) and passes through the point (−2 , −1)?
ioda

Answer:

y = 1/3(x + 5)^2 - 4

Step-by-step explanation:

The general vertex form is;

y = a(x-h)^2 + k

From the question, (h,k) are the coordinates of the vertex which is (-5,-4)

So we have

y = a(x + 5)^2 -4

So we need to get the leading coefficient

Simply substitute the point it passes through

x = -2 and y = -1

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a = 3/9

a = 1/3

So the equation is;

y = 1/3(x + 5)^2 - 4

5 0
3 years ago
The circumference of a circular painting is 53.38 feet. What is the radius of the painting? Use 3.14 for pi and do not round you
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The circumference or perimeter of the circle has the formula 2*pi*r, where r is the radius of the circle. This could then be easily calculated:

C = 2*pi*r
53.38 = 2*3.14*r
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r = 53.38/6.28
r = 8.5 ft

Thus, the radius of the circle has a length of 8.5 feet.
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FIRST ANSWER GETS BRAINLIEST!!<br> (sorry for the colors on the picture)
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Therefore, the correct option is A.

4 0
3 years ago
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