Solve the problem.Since cos 
= - 
and 
is in the interval [0, ?], cos-1
=
A. 
B. 
C. 
D. 
Answer: A
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Convert the numeral to a numeral in base ten.15eight
A. 104 B. 48 C. 13 D. 23
The Acme Class Ring Company designs and sells two types of rings: the VIP and the SST. They can produce up to 24 rings each day using up to 60 total man-hours of labor. It takes 3 man-hours to make one VIP ring, versus 2 man-hours to make one SST ring.How many of each type of ring should be made daily to maximize the company's profit, if the profit on a VIP ring is $60 and on an SST ring is $20?
A. 24 VIP and 0 SST B. 20 VIP and 0 SST C. 24 VIP and 4 SST D. 20 VIP and 4 SST
Fill in the blank with one of the words or phrases listed below.
In the percent proportion 
= 
.
A. 
B. 
C. 
D. 
Solve the problem.A research study tested for the presence of a certain environment-sensitive chemical in the sap of trees within a particular geographical region. The formula P = 
models the percentage, P, of trees that tested positive for the chemical t years after 1875. Use this model to find the percentage of trees that tested positive in 1883.
A. 
%
B. 11%
C. 
%
D. 
%