Add or subtract. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Answer: D
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Use the apportionment criterion to decide who should get an additional representative if another member is added to the total number of representatives.The Artist's Association has 7 representatives from the Painter's Group, which has 200 members, and 8 representatives from the Sculptor's Association, which has 480 members.
A. Painter's Group B. Sculptor's Association
Simplify by taking the roots of the numerator and the denominator. Assume all variables represent positive numbers.
A. 24
B. 1
C. 
D. 
In electrical circuits, the impedance Z (or opposition to the flow of electricity), voltage V, and current I can all be represented by complex numbers. They are related by the equation Z = 
. Use this equation to find the value of the missing variable.V = 56 - 42i, I = 4 + 2i
A. Z = 4 + 26i B. Z = 4 - 26i C. Z = 7 - 14i D. Z = 7 + 14i
Solve the problem.Ariel, a marine biologist, models a population P of crabs, t days after being left to reproduce, with the function 
. Assuming that this model continues to be accurate, when will this population become extinct? (Round to the nearest day.)
A. 911 days B. 707 days C. 547 days D. 1512 days