Use a finite sum to estimate the average value of the function on the given interval by partitioning the interval and evaluating the function at the midpoints of the subintervals.f(x) = 4x5 on [1, 3] divided into 4 subintervals
A. 234.4
B. 937.6
C. 138.4
D. 58.6
Answer: A
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Identify the terms. Then identify the coefficients of the variable terms of the expression.
?
A. 
, and 7 are the terms; 
and 2 are the coefficients.
B. 
, and 7 are the terms; 
and -2 are the coefficients.
C. 
, and -7 are the terms; 
and 2 are the coefficients.
D. 
, and -7 are the terms; 
and -2 are the coefficients.
E. 
, and -7 are the terms; 
and 2 are the coefficients.
Write as an improper fraction.6
A. 
B. 
C. 
D. 
Solve for the specified variable. Assume that the constants have values for which the equation has exactly one real-number solution.x = 
, for r.
A. r = 
B. r = 
C. r = 
D. r = x + y
Find the intercepts for the equation.x + y = 1
A. x-intercept: 0; y-intercept: 2 B. x-intercept: 1; y-intercept: 2 C. x-intercept: 1; y-intercept: 1 D. x-intercept: -1; y-intercept: 0