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koban [17]
3 years ago
12

S(t)=16t^2+32t, how long will it take the ball to fall 79 feet?

Mathematics
1 answer:
Phantasy [73]3 years ago
5 0
Mudando o sinal:
-16t² - 32t = 0
-16t*(t-2) = 0
16t = 0 --> t = 0
t-2 = 0 --> t = 2
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What is the solution of the system? Use elimination. 5x + 4y = –2 x – 4y = 14
Dimas [21]

Answer:

The answer to your question is x = 2, y = -3

Step-by-step explanation:

Data

                   5x + 4y = -2                Equation l

                     x - 4y = 14                 Equation ll

Process

-Sum up the equation

Result

                        6x = 12

Solve for x          x = 12/6

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-Substitute x in equation ll

                     2 - 4y = 14

-Solve for y

                        -4y = 14 - 2

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                           y = 12/-4

-Result

                            y = -3                    

8 0
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