Answer:
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Answer:
Step-by-step explanation:
when x=4
area=4²+14×4+c=16+56+c=72+c
8²=64
9²=81
72+c=81
c=81-72=9
area=81 units²
length of each side=√81=9 units
Answer:
I believe the answer is B
Step-by-step explanation:
The answer is b, because it is linear and x and y have a proportional relationship with x increasing by 2 and y increasing by 4. So the slope is 2/4 or 1/2 making it a proportional relationship.
Answer:
16
Step-by-step explanation:
Set s(t) = 0 which means it hits the ground. The formula doesn't fit the parameters given as it shows that the pitcher is standing on something 37 feet high.
<span>s(t)=-16t^2+140t+37 and has an initial velocity of 140.
Graphing or solving this, t= 9 seconds when it hits the ground.
The velocity V(t) is the derivative of s(t)
V(t) = -32t+140
V(9) = -148 ft/second which is going down
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