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 1100 people were afflicted with the disease in 2010, estimate the number of new cases in 2015. (Round to the nearest whole number, if necessary.)
A. 17 new cases
B. 69 new cases
C. 138 new cases
D. 34 new cases
Answer: D
Mathematics
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Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log17
A. 
log17mn - 
log178
B. 
log17m + 
log17n - log178
C. 
log17m ? 
log17n ÷ 
log178
D. 
log17m + 
log17n - 
log178
Mathematics
Solve the problem.The side of an equilateral triangle is 
shorter than the side of a square. The perimeter of the square is 
more than the perimeter of the triangle. Find the length of a side of the square.
A. 22 in. B. 23 in. C. 19 in. D. 24 in.
Mathematics
Find the square root.
A. 12 B. 9 C. 8 D. 32
Mathematics
List the factors of the number.40
A. 1, 2, 4, 5, 8, 10, 40 B. 1, 2, 4, 5, 8, 10, 20, 40 C. 1, 2, 4, 5, 8, 10, 16, 20, 40 D. 1, 2, 4, 5, 8, 10, 12, 20, 40
Mathematics