Solve.How long will it take for the population of a certain country to double if its annual growth rate is 2.2%? Round to the nearest year. Use the exponential growth model 
A. 32 yr
B. 1 yr
C. 14 yr
D. 91 yr
Answer: A
Mathematics
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Find all values of x in the interval [0°, 360°) that satisfy the equation. Round approximate answers to the nearest tenth of a degree.3 sin2x - sin x - 4 = 0
A. {90°} B. {180°} C. {270°} D. {0°}
Mathematics
Determine the number of terms and name the coefficients of the terms.3y - 2w - s
A. 3; 3, 2, 1 B. 3; 3, -2, 1 C. 3; 3, 2, -1 D. 3; 3, -2, -1
Mathematics
Differentiate.y = 
? x4
A. 
B. 
C. 
D. 
Mathematics
Find the first term and the common ratio for the geometric sequence. Round approximations to the nearest hundredth.a2 = 20.8, a9 = 130.52
A. a1 = 130.52, r = 0.77 B. a1 = 20.8, r = 1.3 C. a1 = 16, r = 0.77 D. a1 = 16, r = 1.3
Mathematics