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QveST [7]
3 years ago
13

What’s the error he made and the answer that’s all

Mathematics
1 answer:
g100num [7]3 years ago
5 0

Answer:

mica should have added 2 to 3 instead of 1

Step-by-step explanation:

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A ball, thrown vertically upwards, from the ground, has its height h (in meters) expressed as a function of time t (in seconds),
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Answer:

a. 15 meters.

b. 20 meters.

Step-by-step explanation:

a. The height of the ball at 3 seconds. 20 * 3 - 5 * (3)^2 = 60 - 5 * 9 = 60 - 45 = 15.

The ball will be 15 meters high.

b. The maximum height reached by the ball.

To get that, we need to find the vertex of the parabola. We do so by doing -b/2a to find the x-coordinate of the vertex.

In this case, a = -5 and b = 20.

-20 / 2(-5) = -20 / -10 = 20 / 10 = 2.

Then, we find the y-coordinate by putting 2 where it says "t".

h(2) =  20(2) - 5(2)^2 = (40) - 5(4) = 40 - 20 = 20 meters.

Hope this helps!

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3 years ago
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3 years ago
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Plss help is this linear or non-linear??
skad [1K]

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linear

Step-by-step explanation:

The line is straight, it's not like going in any other direction at all or anything

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3 years ago
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What is the centimeters?
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There are two similar right triangles. One has side lengths of 6, 8, and 10. The other has side lengths of 24, and 18. What is t
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