Find the measure of the complement of the angle.Find the complement of 72°.
A. 18°
B. 198°
C. 108°
D. 288°
Answer: A
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Find the values of x for which the geometric series converges.
A. - 
< x < 
B. - 
< x < 0
C. 0 < x < 
D. 0 < x < 
Calculate the perimeter for the given figure. Use 3.14 for ?. Round to hundredths if necessary.Rectangle topped by a semicircle
A. 29.85 ft B. 32.70 ft C. 18.57 ft D. 24.85 ft
Solve the problem.The half-life of an element is 4.2 × 1012 yr. How long does it take a sample of the element to decay to 
of its original mass? Use 
where A0 is the initial amount, T is the half-life, and t is the time. (Express results in scientific notation, rounded to the nearest hundredth.)
A. 5.07 × 1012 yr B. 2.46 × 1012 yr C. 1.21 × 1012 yr D. 1.18 × 1012 yr
Find the probability.The distribution of B.A. degrees conferred by a local college is listed below, by major.MajorFrequencyEnglish2073Mathematics2164Chemistry318Physics856Liberal Arts1358Business1676Engineering 8689313What is the probability that a randomly selected degree is not in Mathematics? Give your answer as a decimal rounded to three decimal places.
A. 0.682 B. 0.303 C. 0.232 D. 0.768