Answer:
t = 1 s
Step-by-step explanation:
The function models the height of the ball after t seconds is given by :
We need to find how many seconds does it take for the ball to reach its maximum height.
For maximum height put dh/dt = 0
So,
32-32t = 0
t = 1
So, it will take 1 second to reach its maximum height.
Answer:
y = 2x - 9.
Step-by-step explanation:
2y - 4x = -18
Add 4x to both sides:
2y = 4x - 18
Divide both sides by 2:
y = 2x - 9.
Answer:
6 Miles and the cost is $4.50
Step-by-step explanation:
3+0.25=0.75x
3+0.50x
6=x
0.75x+?
0.75 x 6= 4.50
Answer:
I. x + y = -3 --> y = -x - 3
II. y = 2x
2x = -x - 3
3x = - 3
x = -1
y = 2*(-1) = -2
<h3>
Answer: 6 dollars per kilogram</h3>
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Explanation:
The mixed number 4 & 1/2 converts to the decimal form 4.5
The unit price is 27/(4.5) = 6 dollars per kilogram
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If you wanted, you can think of it like this ratio
4.5 kg : 27 dollars
Dividing both parts of that ratio by 4.5 will lead to
1 kg : 6 dollars
