Find Dxy.y = cosh x5
A. 5cosh4x sinh x5
B. 5x4 sinh x5
C. -5x4 sinh x5
D. sinh x5
Answer: B
Mathematics
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Find the domain of the expression.
?
?
A. All real numbers x such that x ? 8 B. All real numbers x such that x ? 2 C. All real numbers x such that x> 2 D. All real numbers x E. All real numbers x such that x> 8
Mathematics
Solve the problem.Mike filled his car's gas tank and noted that the odometer read 24,378.9. After the next filling, the odometer read 24,865.4. It took 17.5 gal to fill the tank. How many miles per gallon did the car get?
A. 27.1 mpg B. 28.8 mpg C. 28.1 mpg D. 27.8 mpg
Mathematics
Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.32 + 63 + 94 + . . . + 249
A. 
B. 
C. 
D. 
Mathematics
Find the sum.
A. 
B. 
C. 
D. 
Mathematics