Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Add or subtract measurement numbers, rounding to the correct precision.31.7 psi - 6.9 psi
A. 24.9 psi B. 24.7 psi C. 24 psi D. 24.8 psi
Mathematics
Solve the problem.A cable TV company charges $24 for the basic service plus $8 for each movie channel. Let y be the total cost in dollars of subscribing to cable TV, using x movie channels. Find the slope-intercept form of the equation.
A. y = 8x - 24 B. y = 24x - 8 C. y = 8x + 24 D. y = 24x + 8
Mathematics
Match the equation with the appropriate graph.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Complete the identity.sin ? [sin(4?) + sin 6?)] = ?
A. 
cos ? [cos(4?) + cos(6?)]
B. 
cos ? [cos(4?) - cos(6?)]
C. cos ? [cos(4?) - cos(6?)]
D. cos ? [cos(4?) + cos(6?)]
Mathematics