Solve the problem.In how many ways can you answer the questions on an exam that consists of 7 multiple choice questions, each of which has 3 answer choices?
A. 3027
B. 2187
C. 1957
D. 343
Answer: B
Mathematics
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Answer the question.True or False? An earthquake of magnitude 4 will do twice as much damage as an earthquake of magnitude 2.
A. True B. False
Mathematics
Solve the problem.For what numbers x, 0 ? x ? 2?, does cos x = 0?
A. 0, ?, 2?
B. 0, 1, 2
C. 
, 
D. 0, 1
Mathematics
Graph the equation by plotting points.y = x - 3
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Doctors predict that by administering a vaccine, the number of new cases of a certain childhood disease will decrease by half each year. If 600 people were afflicted with the disease in 2017, estimate the number of new cases in 2022. (Round to the nearest whole number, if necessary.)
A. 38 new cases in 2022 B. 19 new cases in 2022 C. 75 new cases in 2022 D. 9 new cases in 2022
Mathematics