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N76 [4]
3 years ago
7

after 1 second the ball is 76 feet in the air: after 2 seconds it is 144 feet in the air. Find the height of the function. h(x)=

?
Mathematics
1 answer:
MArishka [77]3 years ago
4 0
General equation for height, h
h = ut + 0.5gt^2

at t=1s, h = 76 feet
76 = u*1 + 0.5*a*1^2
76 = u + 0.5a

at t=2s, h = 144 feet
144 = u*2 + 0.5*a*2^2
144 = 2u + 2a
72 = u + a

Subtract 2 equations
0.5a = -4
a = -8
u = 80

So the equation,
h(x) = 80t + 0.5*(-8) t^2
h(x) = 80t - 4t^2
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Did I do this correctly?​
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No, The answer should be 240

Step-by-step explanation:

  1. The first step to finding the Surface Area was done well and was right but you got confused when trying to add the area of each shape
  2. There is 3 Rectangles and 2 Traingles.
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Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the
harina [27]

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The missing statement is Corresponding angles theorem

Step-by-step explanation:

In this question we are finding the reason for the statement ∠6 ≅ ∠2.

We will write the statements and then we'll give their reasons.

     <u> Statement </u>                                      <u>Reason</u>

1) a || b, is a transversal                             Given

2)   ∠6 ≅ ∠2                                        <em> </em><u><em>Corresponding angles theorem </em></u>

3)  m∠6 = m∠2                                       def. of congruent

4) ∠6 is supp. to ∠8                                 def. of linear pair

5) ∠2 is supp. to ∠8                                congruent supplements theorem

Corresponding Angles Theorem states: If two parallel lines are cut by a transversal, then the pairs of corresponding angles are congruent.

The angles in matching corners are called Corresponding Angles.We can further define it as corresponding angles are angles that are in the same relative position at an intersection of a transversal and at least two lines. If the two lines are parallel then the corresponding angles are congruent

Thus the missing statement is Corresponding Angles Theorem.

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3 years ago
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