A phone company charges $13.00 per month plus $0.02 per call. Find a rational function that expresses the average cost y of a call in a month when x calls were made.
?
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Evaluate the integral.
d?
A. 2 ln (1 + e2?) + C
B. ln (1 + e2?) + C
C. 
+ C
D. 
+ C
Mathematics
Perform the following calculations.(+8)(-7) - (-1)(-21)
A. -35 B. -19 C. -77 D. -21
Mathematics
Combine like terms whenever possible.15x6 - 4x6 + 3x2 + 11x6 - 6x2
A. 19x8 B. 22x6 - 3x2 C. 19x6 D. Not possible
Mathematics
Graph the quadratic function using its vertex, axis of symmetry, and intercepts.f(x) = -10x2 - 2x - 7
A. vertex 
intercept (0, 7) 
B. vertex 
intercept (0, -7)
C. vertex 
intercept (0, -7) 
D. vertex 
intercept (0, 7) 
Mathematics