Solve the system by elimination.2x + y = 6 x - 2y = 18
A. (7, -8)
B. (8, -5)
C. (5, -6)
D. (6, -6)
Answer: D
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Solve.The number G of gears a machine can make varies directly as the time T it operates. If it can make 7263 gears in 18 hours, how many gears can it make in 15 hours? Round to the nearest whole number if necessary.
A. 0 gears B. 404 gears C. 7296 gears D. 6053 gears
Identify the intersection of the plane with the solid.Triangular prism
A. Quadrilateral
B. Triangle
Rationalize the denominator.
A. 
B. 
C. 
D. 
Solve the problem.Suppose that P dollars are loaned, with the money to be repaid in n monthly payments of M dollars each. Then the true annual interest rate is found by solving the equation 
for i, the monthly interest rate, and then multiplying i by 12 to get the true annual rate. This equation can best be solved by Newton's method, letting 
. Suppose that P = $13,000, n = 60, and M = $308. Let the initial guess for i be i1 = 0.01. Use Newton's method to find i2. Give your answer to five decimal places.
A. 0.00964 B. 0.01194 C. 0.01224 D. 0.01234