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allochka39001 [22]
3 years ago
10

H= -16t^2+16t+192 When will the ball hit the​ ground?

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
6 0

-16t^2+16t+192= 0 (when the ball hits the ground, h will be zero)

Use the quadratic formula to solve the equation (If you don't know how to solve quadratic equations, just ping me dude and I'll try my best to help you)

We get x=-3 and 4

Now since time can't be negative, therefore the answer is after 4 seconds

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Answer:

(5, 7, 15)

Step-by-step explanation:

A pair of numbers is coprime if the maximum number that divides the two is 1.

Consider the three numbers: 5, 7, 15

The first two numbers 5 and 7 can only be divided by 1. Hence the pair (5, 7) is coprime.

The second pair of numbers 7 and 15 is also coprime as the number which can divide both these numbers is 1. So the pair (7, 15) is also coprime

So, we have two pairs of coprime numbers: (5,7) and (7,15)

According to the friend, (5, 15) must also be coprime, but this not true as both these numbers can also be divided by 5.

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4 years ago
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I think the answer may be C.

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-(1 – 7d) = 3(8a - 6)​
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Answer:

See below and attached picture

Step-by-step explanation:

a. To graph the equation set y = 0 and solve for t.

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