Solve the problem.Four times a number added to 8 times the number is 60. What is the number?
A. -7.5
B. 0.6
C. 5
D. 7.5
Answer: C
Mathematics
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Find the unknown length in the right triangle. If necessary, approximate the length to the nearest thousandth.
A. 10.863 ft B. 8 ft C. 10.583 ft D. 11.402 ft
Mathematics
Perform the indicated operations, and write the answer in scientific notation.(3.09 × 10-4)(9.92 × 107)
A. 30.6528 × 103 B. 3.06528 × 10-27 C. 3.06528 × 102 D. 3.06528 × 104
Mathematics
Add or subtract as indicated.Add.
A. -7p - 17 B. 7p - 17 C. 15p - 5 D. -15p - 5
Mathematics
Use a graphing utility to solve the system of linear equations and give the solution of the system.
A. 
x = 
, y = - 
, z = 9
B. 
x = 
, y = - 
, z = 9
C. 
x = 1, y = 5, z = 9
D. 
x = 9, y = 5, z = 1
Mathematics