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SVEN [57.7K]
1 year ago
6

A football is kicked vertically upward from a height of 2 feet with an initial speed of 50 feet per second. The formula h=2+50t-

16t² describes the ball's height above the ground, h, in
feet, t seconds after it was kicked. Use this formula to find the ball's height 2 seconds after it was kicked.
The ball's height, 2 seconds after it was kicked, was feet.
Mathematics
1 answer:
Oksanka [162]1 year ago
5 0

Answer: 38 feet.

Step-by-step explanation:

The equation of motion of a body thrown vertically upwards:

                                       \displaystyle\\\boxed {h=h_0+v_0t-\frac{gt^2}{2} \ \ \ \ \ (1)},

h_0=2 \ feet\ \ \ \  v_0=50\  feet\  per\  second.

Substitute in formula (1) the value t=2 c:

h=2+50*2-16*2^2\\h=2+100-16*2*2\\h=102-64\\h=38\ feet.

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A company that teaches self-improvement seminars is holding one of its seminars in Lancaster. The company pays a flat fee of $98
alukav5142 [94]

Answer:

Step-by-step explanation:

Let x represent the number of attendees that it will take the company to break even.

The company pays a flat fee of $98 to rent a facility in which to hold each session. Additionally, for every attendee who registers, the company must spend $16 to purchase books and supplies. This means that the total cost that the company would pay for x attendees is

16x + 98

Each attendee will pay $65 for the seminar. This means that the total revenue that the company would generate from x attendees is 65x.

At the break even point,

total cost = total revenue

Therefore,

16x + 90 = 65x

65x - 16x = 98

49x = 98

x = 98/49

x = 2

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4 0
3 years ago
Please Explain How To Solve This
atroni [7]

Answer:

Step-by-step explanation:

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problem #1:

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4 0
3 years ago
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Nady [450]
To simplify 7C4 we use the combination formula given by:
nCr=n!/[(n-r)!r!]
thus:
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3 years ago
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3 years ago
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I need help with this pleasee
Sauron [17]

Answer:

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Step-by-step explanation:

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300/2.5 = 120

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