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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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(TIMED),<br> Which equation is represented in the graph?
AURORKA [14]

Answer:

y = e^x

Step-by-step explanation:

That curve represents a typical function of y = e^x, and to decide if it is y = e^x or y = e^x + 1 you need to replace x = 0

y = e^(0) = 1

y = e^(0) + 1 = 2

If you see the graph when x = 0, y = 1

So it is y = e^x

7 0
2 years ago
Two events, A and B, are independent of each other. P(A)=– and P(A and B)
Georgia [21]

Answer:

D: 0.75

P(B) = \frac{6}{8} = 0.75

Step-by-step explanation:

<u>Explanation</u>:-

<u><em>Independent events:</em></u>

If the occurrence of the  event 'B' is not effected by the occurrence or non- occurrence of the event 'A' then the event 'B' is said to be independent of 'A'

or

<em>The two events are independent if the incidence of one event is not affect the probability of other event.</em>

<em>P(A∩B) = P(A) P(B)</em>

Given data A and B are independent events

Given  data

    P(AnB) = \frac{1}{8} and P(A) =\frac{1}{6}

we know that A and B are independent events are

  P(A∩B) = P(A) P(B)

  \frac{1}{8} =  \frac{1}{6}  P(B)

Now calculation we get

P(B) = \frac{6}{8} = 0.75

<u><em>Final answer:</em></u>-

P(B) = \frac{6}{8} = 0.75

7 0
3 years ago
What is the answer to 6/5= 2/5n and tell me how you got the answer
alina1380 [7]
\frac{6}{5} = \frac{2}{5} n

First, simplify \frac{2}{5} n to \frac{2n}{5} / Your problem should look like: \frac{6}{5} = \frac{2n}{5} 
Second, multiply both sides by 5. / Your problem should look like: 6 = 2n
Third, divide both sides by 2. / Your problem should look like: \frac{6}{2} = n
Fourth, simplify \frac{6}{2} to 3. / Your problem should look like: 3 = n
Fifth, switch sides. / Your problem should look like: n = 3

Answer: n = 3

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What is the measure, in degrees, of angle 1?
ra1l [238]

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Think simple.

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Where is the net? Anyway I guess it's A

3 0
3 years ago
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