Write the ratio or rate in simplest form.A trip of 432 miles uses 45 gallons of gasoline.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the derivative.y = cos e-3x
A. e-3x cos e-3x B. -3 e-3x sin e-3x C. 3 sin e-3x D. 3 e-3xsin e-3x
Mathematics
Solve the problem.The force, in dynes, that exists between two magnetic poles is given by 
where d is the distance, in centimeters, between the poles. Multiply and simplify this formula for F.
A. F = 
B. F = 
C. F = - 
D. F = 
Mathematics
If possible, use the graph to evaluate the expression.f(-2)
A. 1 B. 0 C. Undefined D. -1
Mathematics
Determine whether the infinite geometric series converges or diverges. If it converges, find its sum.3 + 
+ 
+ ...
A. Converges; 3
B. Converges; 
C. Converges; 6
D. Converges; 
Mathematics