Write the prime factorization of the number.1,239
A. 3 ? 7 ? 59
B. 32 ? 59
C. 21 ? 59
D. 72 ? 59
Answer: A
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Find the perimeter of the polygon.
A. 14 ft B. 28 ft C. 35 ft D. 21 ft
The graph below indicates the number of new cases of Chalk Dust Disease (CDD) diagnosed each month in the Mathland. Let T(t) represent the total number of new cases per month, F(t) the number of new cases per month among algebraists, G(t) the number of new cases per month among geometers, and t the number of years since January 1, 1990.
Estimate (T - F)(8) and interpret its meaning.
A. 3800; In January, 1998, there were about 3800 new cases of CDD diagnosed among geometers. B. 1500; In January, 1998, there were about 1500 new cases of CDD diagnosed among algebraists. C. 2400; In January, 1998, there were about 2400 new cases of CDD diagnosed among geometers. D. 3800; In January, 1998, there were about 3800 new cases of CDD diagnosed.
For an initial sample of 4 grams of carbon-14, the function 
represents the number of years after death, t, and the remaining amount of carbon-14 atoms, 
in grams. Find the amount of carbon-14 remaining after 8595 years. Round to the nearest tenth.
A. 0.1 g B. 1 g C. 1.2 g D. 1.1 g E. None of these
Solve.As Sunee improves her algebra skills, she takes 0.8 times as long to complete each homework assignment as she took to complete the preceeding assignment. If it took her 50 minutes to complete her first assignment, find how long it took her to complete the fifth assignment. Find the total time she took to complete her first five homework assignments. (Round to the nearest minute.)
A. 20 min; 148 min B. 16 min; 148 min C. 16 min; 168 min D. 20 min; 168 min