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avanturin [10]
3 years ago
8

A ball is thrown from a height of 32 meters with an initial downward velocity of 2/ms. The ball's height h (in meters) after t s

econds is given by the following. =h−32−2t5t2 How long after the ball is thrown does it hit the ground?
Mathematics
1 answer:
Bumek [7]3 years ago
6 0

0=65-10t-5t^2

now what you want to do is multiply a and c

-5(t^2+2t-13)

Now just find the zeros

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The equation $y=-4.9t^2+3.5t+5$ describes the height (in meters) of a ball thrown upward at $3.5$ meters per second from $5$ met
Georgia [21]

Answer:

Step-by-step explanation:

The position function is

s(t)=-4.9t^2+3.5t+5 and if we are looking for the time t it takes for the ball to hit the ground, we are looking for the height of the ball when it is on the ground. Of course the height of anything on the ground is 0, so if we set s(t) = 0 and solve for t, we will find our answer.

0=-4.9t^2+3.5t+5 and factor that however you are currently factoring in class to get that

t = -.71428 seconds or

t = 1.42857 seconds (neither one of those is rational so they can't be expressed as fractions).

We all know that time will never be a negative value, so the time it takes this ball to hit the ground is

1.42857 seconds (round how you need to).

4 0
3 years ago
Antonio drove 26 miles north, and then drives west. At the end of his drive, it is determined that he is 50 miles from where he
Dmitriy789 [7]

Answer:

24

Step-by-step explanation:

50 minus 26 is 24 so this explains that it is 24 pretty easy not gonna lie

8 0
3 years ago
PLease help on this math The average cost per once for glass cleaner is 7.7 cents with a standard deviation of 2.5 cent. what is
Vilka [71]
Z = (10.1 - 7.7) / 2.5 = 2.4 / 2.5 = 0.96
6 0
3 years ago
Is my answer correct?
ziro4ka [17]
Here is the answer to the given problem above. 
Here is the exponential function to model this situation:
<span>f(x) = 420(0.79)x
Now, solve with the given values.
</span><span>P(t)=420×(.79<span>)^t</span></span> <span><span>P(5)=420×(.79<span>)^5</span>=129
So the answer would be 129 animals.
Hope this answer helps. Thanks for posting your question!</span></span>
6 0
3 years ago
Read 2 more answers
an outdoor pavilion has 30 rows with 20 seats in the first row each row thereafter has 6 more seats using a formula find the tot
MArishka [77]
The file isn’t working on my phone
5 0
3 years ago
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