Solve the problem.An economist predicts that the buying power B(x) of a dollar x years from now will decrease according to the formula B(x) = 0.51x. How much will today's dollar be worth in 7 years? Round the answer to the nearest cent.
A. $0.62
B. $2.70
C. $3.57
D. $0.01
Answer: D
Mathematics
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Use a graphical method to solve the system. Give x- and y-coordinates correct to the nearest hundredth.y = 
x2 + y2 = 5.7
A. x = -1.50, y = 1.86; x = 1.84, y = 1.52 B. x = -1.84, y = 1.52; x = 1.50, y = 1.86 C. x = -1.84, y = -1.52; x = 1.50, y = -1.86 D. x = -1.50, y = -1.86; x = 1.84, y = -1.52
Mathematics
Identify the set as finite or infinite.The set of multiples of 5 between 0 and 1000
A. Infinite B. Finite
Mathematics
Solve the quadratic equation by any method.
x2 + x + 1 = 0
A. 5 ± 
B. -5 ± 
C. 5 + 
D. -10 + 
Mathematics
Find the graph of the equation.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics