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soldi70 [24.7K]
3 years ago
12

Does anyone know the answer?

Mathematics
1 answer:
FromTheMoon [43]3 years ago
6 0

Answer:

AB = 4.41

Step-by-step explanation:

→You are given the adjacent side and need to find the hypotenuse. For this, we use cos.

<u>→Set it up, like so:</u>

<u />cos25=\frac{4}{x}

<u>→To get rid of the x in the denominator, multiply everything by x:</u>

<u />x(cos25=\frac{4}{x})

xcos25 = 4

<u>→Divide both sides by cos25:</u>

x = 4.413

<u>→Round to nearest hundredth:</u>

x = 4.41

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If a ball is thrown directly upward with a velocity of 50ft/s, it's height (in feet) after t seconds is given by y=50t-16t^2 wha
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Step-by-step explanation:

Since the function is a quadratic representing height, and the coefficient of the t² is negative, the vertex of the parabola will be the maximum height achieved by the ball.  

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To find the x coordinate of the vertex, use   x = -b/(2a)

We have x = -50/[2(-16)]

               

                  x = -50/-32

             

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Now plug that into the equation to find the y value, which will be the height...

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