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trapecia [35]
3 years ago
9

During batting practice, two pop flies are hit from the same location, 2 s apart. The paths are modeled by the equations h = -16

t2 + 56t and h = -16t2 + 156t - 248, where t is the time that has passed since the first ball was hit. possible answers: A :Isabel is correct because the y-intercept of line B is (0, 9) and the value of y when x = 0 in parabola A is 9. B: Isabel is correct because the y-intercept of line B is (9, 0) and the value of x when y = 0 in parabola A is 9. C: Isabel is incorrect because the point of intersection between line B and parabola A that can be determined is the y-intercept of the equations, not the vertex. D: Isabel is incorrect because the point of intersection between line B and parabola A that can be determined is the x-intercept of the equations, not the vertex.
Mathematics
1 answer:
Alona [7]3 years ago
4 0

Answer:

wow

Step-by-step explanation:

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25

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Easy! You plug in 3 for n! H(3) = 3^3 - 2

3^3 = 27 - 2 = 25

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So since this is half a circle, we have to divide the area of a circle by 2. So that would give us 1/2 pi* r^2. We find the radius by dividing 10 by 2. So the radius is 5. Plugging that in for r in 1/2(pi)(r^2) we get 1/2(pi)(5^2) which is 25pi/2. Turning pi into 3.14 we have (25(3.14))/2 which is 78.5/2 which is approximately 39.25 units^2
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The coordinate point (3.5, 3.5), the reflection of the coordinate across the y-axis will form a pre image at (-3.5, 3.5)

<h3>Reflection of coordinates</h3>

If a coordinate (x,y) is reflected across the y-axis, the equivalent coordinate points will be given as (-x, y).

Using the translation for the reflections;

  • (x,y) \rightarrow (-x, y)

Give the coordinate point (3.5, 3.5), the reflection of the coordinate across the y-axis will form a pre image at (-3.5, 3.5)

Learn more on reflection here: brainly.com/question/13355850

4 0
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