Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = x2 between x = 1 and x = 5 using a left sum with four rectangles of equal width.
A. 30
B. 69
C. 54
D. 41
Answer: A
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Solve the problem.In four rounds of a card game, you get scores of 6, -1, 2, and 9. What is your final score?
A. -18 B. 16 C. -16 D. 18
Solve the problem. A student plans to drive 100 miles on an undivided highway and another 150 miles on a divided highway. The speed limit for the undivided highway is 55 mph and the speed limit for the divided highway is 65 mph. Let T(a) represent the driving time (in hours) if the student drives at a mph above the speed limits. Find a formula for T(a).
A. T(a) = 
+ 
B. T(a) = 
+ 
C. T(a) = 
+ 
D. T(a) = 
+ 
Simplify the expression by combining like terms.9b - 5b + 4
A. -4b + 4 B. 8b C. 4b + 4 D. 14b + 4
Let A = {1, 3, 5, 7}; B = {5, 6, 7, 8}; C = {5, 8}; 
and 
Determine whether the given statement is true or false.U ? A
A. True B. False