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2 answers:
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Answer:
a) The jumper opens the parachute in 7.5 seconds.
b) The jumper opens the parachute in approximately 7.706 seconds.
c) There are two possible choices for the function:
Case a): ,
Case b): ,
Step-by-step explanation:
Note: The equation presented in statement is incorrect. The correct formula for free fall is:
(1)
Where:
- Time, measured in seconds.
- Height above the ground, measured in feet.
a) If we know that , then the final instant of the free fall stage is:
The jumper opens the parachute in 7.5 seconds.
b) How long is the jumper in free fall if the parachute opens at 950 ft?
If we know that , then the final instant of the free fall stage is:
The jumper opens the parachute in approximately 7.706 seconds.
c) There are two possible choices for the function:
Case a): ,
Case b): ,
a rectangle's area is simply width * length, so is the product of two factors.
in this case, we know that product, is 70x + 10, so, how can we tease out the factors from it?
well, our GCF from 70x and 10 is "10", but 10 itself is factorable into "2" and "5", so we can simply use that GCF and troupe to see what it might be.