Answer:
For first part, t= 0.18 sec or 3.4 sec.
For second part, t= 3.7 sec.
Step by step answer:
First part:
Set h(t) = 17and solve for tt.
-16t²+ 58t + 7= 17
-16t² + 58t - 10 = 0
Solve this quadratic equation for t. You should get 2 positive solutions. The lower value is the time to reach 17 on the way up, and the higher value is the time to reach 17 again, on the way down.
Second part:
Set h(t) = 0 and solve the resulting quadratic equation for t. You should get a negative solution (which you can discard), and a positive solution. The latter is your answer.
Answer:
Step-by-step explanation:
If there are two variables together, you will have to multiply them.
Replace x and y accordingly:
Answer:
y= 1/3 x-4
Step-by-step explanation:
-2x+6y=-24 Write what you are given
+2x +2x Add 2x to each side to get y by itself
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+6y=-24+2x
/6 /6 Divide by six on both sides to get y by itself
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y=-4+ 1/3 x
y= 1/3 x-4 Rearrange to get into y=mx+b form
Answer:
4x+7=27
Step-by-step explanation: The answer you think is correct ! So the 4 times a number is 4x the four being a coefficient and X being the unknown number( variable ) and increase is adding so its +7 and is is just an another word for equal =
Answer:
a = 19
Step-by-step explanation:
a=2b-c
a= 2(11) - 3
a = 22 - 3
a = 19
