Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.62 + 123 + 184 + . . . + 489
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Provide an appropriate response.
How many people were surveyed?
A. 45 B. 58 C. 47 D. 10
Mathematics
Evaluate to four decimal places using a calculator.
3
A. 7.3891 B. 403.4288 C. 0.0025 D. 20.0855
Mathematics
Determine whether the equation defines y as a function of x.x + y3 = 64
A. y is a function of x B. y is not a function of x
Mathematics
Find the derivative of the function at the given value of x using a graphing utility. If necessary, round to four decimal places.f(x) = x sin(9x); x = 7
A. 1171.4513 B. 62.2780 C. -1171.4513 D. 62.1018
Mathematics