Solve the equation and check your proposed solution.3x = 30
A. 10
B. 90
C. 27
D. 
Answer: A
Mathematics
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Graph the integrand and use areas to evaluate the integral.
A. 
B. 81
C. 243
D. 162
Mathematics
Solve the problem.A stockbroker bought 50 shares of stock for $38.72 each. What was the total amount of the purchase?
A. $1935.90 B. $1936.10 C. $1936.11 D. $1936.00
Mathematics
Solve the equation by using the quadratic formula. Give real solutions only. 3x² + x + 1 = 0
Mathematics
Graph the piecewise function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics