Use a calculator with a 
key or a 
key to solve the problem.The exponential function f(x) = 47.36(1.027)x describes the population of a certain country, y, in millions, in year x. a) Substitute 0 for x and, without using a calculator, find the country's population in year 0. b) Find the country's population in year 27 as predicted by this function.
A. a) 1 million; b) 102.554 million
B. a) 47.36 million; b) 97.233 million
C. a) 47.36 million; b) 99.858 million
D. a) 1.027 million; b) 94.677 million
Answer: B
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Classify the number as a natural number, whole number, integer, rational number, irrational, and/or real number. The number may belong to more than one set.639
A. natural number, integer, real number B. whole number, integer, rational number, real number C. natural number, whole number, integer, rational number, real number D. natural number, whole number, integer
Graph the quadratic equations.y = x2 + 2x - 5
A. 
B. 
C. 
D. 
Simplify.
? 
+ 
? 
A. 5
B. 9
C. 7
D. 3
+ 2
A system of nonlinear equations is given. Sketch the graph of the equation of the system and then determine the number of real solutions to the system. Do not solve the system.x2 + y2 = 252y + x = 5
A. Two
B. Two
C. One
D. Zero