Find the acute angle, in radians, between the lines.7x + 5y = -10 and 2x + 5y = -6
A. 0.8419 radians
B. 1.001 radians
C. 0.5700 radians
D. 2.141 radians
Answer: C
Mathematics
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Determine whether the given number is a solution of the equation.
= 
; -7
A. solution B. not a solution
Mathematics
A pipeline is to span a horizontal distance of 144 feet. But the pipeline is sloped downward to promote drainage. The pipeline drops by a total of 14 feet over that span. How much lower is the pipe at the end of each 12-foot horizontal stretch? ?
A. 1.64 feet B. 0.10 feet C. 0.56 feet D. 1.17 feet
Mathematics
Simplify.
A. 52 B. 10 C. 28 D. 16
Mathematics
Use the power rules for exponents to simplify. Write the answer in exponential form.
7 (q ? 0)
A. 
B. 
C. 
D. 
Mathematics