Mr. Morris is going to save money and replace his sailboat's mainsail himself. He must determine the area of the mainsail in ord
er to buy the correct amount of material. Calculate the area of the parallelogram to determine how much material should be purchased. Be sure to explain how to decompose this shape into rectangles and triangles. show your work.
1 answer:
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Answer:
Option 3.
Step-by-step explanation:
The given function is
where, h(t) is the height of a small rock falling from the top of a 124-ft-tall building and t is the time in seconds.
It is a downward parabola.
Equate the function equal to 0, to find the time at which the rock touch the ground.
If , the according to the quadratic formula
Using quadratic formula, we get
Time cannot be negative. So, the rock remain in the air in the interval 0 < t < 2.
Therefore, the correct option is 3.