Find an exact value.tan 105°
A. - 2 + 
B. - 2 - 
C. 
D. 2 - 
Answer: B
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Solve the problem.Find the centroid of the first-octant portion of a solid ball of radius 1 centered at the origin.
A. (
, 
, 
) = 
B. (
, 
, 
) = 
C. (
, 
, 
) = 
D. (
, 
, 
) = 
Translate to a proportion and solve. Round to the nearest hundredth, if necessary.125% of what number is 90?
A. 156.25 B. 15,625 C. 72 D. 720
Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.The mosquito population within a defined area is estimated at 35 million. Due to weather conditions, it is projected that this population will increase by 80%. Find the increase and the projected population.
A. increase: 2,800 million mosquitos projected population: 2,835 million mosquitos B. increase: 2,800 million mosquitos projected population: 2,765 million mosquitos C. increase: 28 million mosquitos projected population: 7 million mosquitos D. increase: 28 million mosquitos projected population: 63 million mosquitos
Solve.Grant worked 6 hours and packed 74 cartons of books. At this rate, how many cartons can he pack in 10 hours?
A. 123
cartons
B. 123 cartons
C. 124 cartons
D. 123
cartons