Decide whether the figure is convex or concave.
A. Convex
B. Concave
Answer: A
Mathematics
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Solve the problem.The decay of 291 mg of an isotope is given by 
where t is time in years. Find the amount left after 47 years. (Round to the nearest milligram.)
A. 52 mg B. 101 mg C. 285 mg D. 103 mg
Mathematics
Solve.Find the capacity (volume in cubic feet) of a rectangular chest with inside measurements of 6 feet by 3
feet by 1
feet.
A. 8
cu ft
B. 4
cu ft
C. 26 cu ft
D. 1
cu ft
Mathematics
Divide.7.4925 ÷ 4.05
A. 0.54054054 B. 18.5 C. 0.05405405 D. 1.85
Mathematics
Write the expression in the standard form a + bi.(1 + i)20
A. 1024 B. -1024 C. 1024i D. -1024i
Mathematics