It's C the missing side is 9 units long so since cosine is adjacent divided by hypotenuse it would be 9/41
There are 4 pairs of overlapping triangles that I can see that are congruent. Two pairs share vertically opposite angles.
One more pair have right angles at the bottom of the rectangle.
One other pair have right angles at the top of the rectangle.
Answer:
4 million a day, 28 million a week, 145,600,000 a year.
Step-by-step explanation:
6 million times 4 is 24 million. Which explains 4 million daily.
4 million times 7 days a week is 28 million weekly.
28 million times 52 weeks a year is 145,600,000.
Answer:
B.
Step-by-step explanation:
The percent increase when 7200 increases by 1800 is 25 %
Answer:
V = 38659.68 cm^3
Step-by-step explanation:
If we pretend A barrel is a cylinder we use V=πr^2h for the volume. We know h, but we need to find r
The question tells us the circumference, well how do we find circumference? C = 2πr, so we can use this to find r.
C = 2πr
56.52 = 2 * 3.14 * r Here divide both sides by 2*3.14
56.52/(2*3.14) = r
9 cm = r
Now we can just plug into the volume.
V=πr^2h
V = 3.14 * 9^2 * 152
V = 38659.68 cm^3
I feel I should mention this is all true if the circumference is in centimeters, since the question didn't specify.