Answer:
13 inches
Step-by-step explanation:
Your formula for a right circular cylinder's volume is
All you have to do is plug in your variables. Since we know that the volume is 2028pi and the height is 12 inches, we can set up the equation as follows:
Next, we simplify. First, we have to divide both sides by pi.
Once we've divided both sides by pi, we can divide both sides by 12.
Now, to find the radius, we have to find the square root of both sides. This is because the square root of r squared is r.
Your radius is 13 inches.
Answer:
55
Step-by-step explanation:
That’s a ninety degree angle
90-35=55
Answer:
<em>3</em>
Step-by-step explanation:
Use a calculator to do 7 divided by 12. You should get
0.58333333...
Only the 3 repeats forever, so the answer is 3.
Answer:
674.2 lb
Step-by-step explanation:
(5 ft)·(8 ft)·(1.2 in)·(12 in/ft)²·(2.54 cm/in)³·(2.7 g/cm³)/(453.592 g/lb) ≈ 674.2 lb
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Comment on units conversion
Units conversion is easily done using conversion factors that have a value of 1. That is, the value of the numerator is equal to the value of the denominator. (12 in = 1 ft, for example). The numerator units are chosen to match units you want, while the denominator units are chosen to match units you want to cancel.
Here, we convert in³ to cm³ to lb using conversion factors given and ones we know.