Choice A - Octahedron is the answer
Answer:
42
Step-by-step explanation:
here,
if y=3 then
width is 3+4=7
We know,
Area = l*b
6*7=42 ans
The perimeter of the figure is 22 units.
The time it will take for the car to skid for 150 feet is 8.23 seconds.
<h3>How to find the time the car will skid?</h3>
The function D(t) = 18t² − 130t gives the distance a car going a certain speed will skid in t seconds.
The time the it would take for the car to skid for 150 feet can be calculated as follows:
Therefore,
D(t) = 18t² - 130t
150 = 18t² - 130t
18t² - 130t - 150 = 0
divide by 3
9t² - 65t - 75 = 0
Hence,
t = 65 ± 5√277 / 18
t = 8.23425471586 or -1.01166666667
Hence,
t = 8.23 seconds.
Therefore, the time it will take for the car to skid for 150 feet is 8.23 seconds.
learn more on function here: brainly.com/question/13927655
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Maybe it would be B
hope it helps
