Use the partial sum formula to find the partial sum of the given arithmetic sequence.Find the sum of the first four terms of the arithmetic sequence: -10, -17, -24, . . . .
A. - 82
B. -68
C. 82
D. -51
Answer: A
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Answer the question.Suppose that a test for a disease correctly gives positive results for 95% of those having the disease and correctly gives negative results for 90% of those who don't have the disease. Suppose also that the incidence of the disease is 1%. If a person tests positive for the disease, what is the chance that they have the disease? Find the exact percentage.
A. 8.8% B. 13.4% C. 95% D. 10%
Use the elimination method to solve the system.3 x - y = 145x + y = 26
A. (5, 1) B. (5, 2) C. No solution D. (1, 5)
Solve the problem.In order for a certain paintbrush to be sold, it must have bristles with a total volume of 
. Upon a final check before being sent to the retail center, a paintbrush was found to have bristles with a total volume of 0.355. Was this paintbrush able to be sold?
A. No B. Yes
Add or subtract. Simplify the answer.
- 
A. 
B. 
C. 
D. 