Solve the equation.5(2z - 2) = 9(z + 2)
A. z = -8
B. z = 13
C. z = 8
D. z = 28
Answer: D
Mathematics
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Solve the problem.Two sailboats leave a harbor in the Bahamas at the same time. The first sails at 23 mph in a direction 350°. The second sails at 33 mph in a direction 190°. Assuming that both boats maintain speed and heading, after 4 hours, how far apart are the boats?
A. 220.7 mi B. 137.4 mi C. 171.2 mi D. 156.3 mi
Mathematics
Find the prime factorization of the product.45 ? 15 ? 49
A. 3 ? 9 ? 5 ? 5 ? 7 ? 7 B. 3 ? 3 ? 5 ? 5 ? 7 ? 7 C. 3 ? 3 ? 3 ? 3 ? 5 ? 7 ? 7 D. 3 ? 3 ? 3 ? 5 ? 5 ? 7 ? 7
Mathematics
Solve.x2 - 4x + 3 = 0
A. 2, 1
B. -3, -1
C. 
, - 
D. 3, 1
Mathematics
Find the domain of the function.y = 
A. All real numbers except -12 B. (-?, 12) C. (12, ?) D. All real numbers except 12
Mathematics