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prohojiy [21]
3 years ago
5

A football is kicked vertically upward from a height of 4 feet with an initial speed of 65 feet per second. The formula h=4+65t−

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 nothing feet. I NEED EXTREME HELP PLEASE !!!
Mathematics
2 answers:
KATRIN_1 [288]3 years ago
3 0

Answer: h = 70ft

Step-by-step explanation: To find the height the ball reached after 2 seconds, substitute variable t for 2 and calculate height:

h=4+65t-16t^{2}

h=4+65.2-16.2^{2}

h=4+65.2-16.4

h=4+130-64

h = 70

<u>After 2s, the football reached a height of </u><u>70 feet</u><u>.</u>

Sedaia [141]3 years ago
3 0

Answer:

if its for 3 seconds the answer is 55

Step-by-step explanation:

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Answer:

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Harriet earns the same amount of money each day. Her gross pay at the end of 7 workdays is 35h+56 dollars. Which expression repr
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Answer:

Gross pay for each day is 5h + 8 dollars.

Step-by-step explanation:

Given:

Number of days = 7

Gross pay for 7 day = 35h+56 dollars.

We need to find the gross pay for each day

Also given Harriet earns the same amount of money each day.

Hence

For 7 days = 35h + 56 dollars

for 1 day = gross pay for each day.

By using Unitary method we get;

Gross pay for each day = \frac{35h + 56}{7} = \frac{35h}{7}+\frac{56}{7}= 5h+8

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3 years ago
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Harry earns $45 a week more than Xena. George earns $18 a week less than Xena. If Harry earns the same amount in two weeks that
12345 [234]

Answer:

Xena earns $144 per a week.

Step-by-step explanation:

Harry earns - $ h

Xena earns - $ x

George earns -$ g

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George earns $18 a week less than Xena.     g = x - 18

If Harry earns the same amount in two weeks that George earns in three weeks

2h = 3g

So, we have the system of 3 equations:

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musickatia [10]
The answer is 10110

===============================================

Explanation:

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Now repeat for the value 11, which was the quotient above
11/2 = 5 remainder 1 <<--- this remainder will be used later. Call it B, so B = 1

Repeat again for the quotient we just got
5/2 = 2 remainder 1 <<--- this remainder will be used later. Call it C, so C = 1

Repeat again
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Repeat again
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The last quotient above is 0, so we stop here. If we tried to keep going, then we'd get nothing but 0 remainders forever.

The remainders we got above were:
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The idea is to read the remainders in reverse order in which we found. So we start with E and work back to A
E = 1
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C = 1
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So 22 base 10 = 10110 base 2

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