Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = 
between x = 4 and x = 6 using a right sum with two rectangles of equal width.
A. 
B. 
C. 
D. 
Answer: C
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An electric company charges a connection fee of $61 plus $0.19 for each kilowatt-hour of electricity used. ? A: Write a formula that gives the cost E, in dollars, of connecting and using h kilowatt-hours of electricity. ? B: Solve the equation you found in part A to express the kilowatt-hours used as a function of the cost E. ? C: How many kilowatt-hours are used if the total charge (connection plus charge for electricity usage) is $155.67?
What will be an ideal response?
The two triangles below are similar. Find the missing lengths.
A. x = 6; y = 12 B. x = 11.25; y = 15.75 C. x = 13.5; y = 18 D. x = 20; y = 28
Choose the most reasonable metric length unit. Choose from km, m, cm, and mm.The length of the basketball court is 29 
.
A. m B. km C. mm D. cm
Evaluate the function as indicated.Find f(6) when f(x) = 9x + 4.
A. 13 B. 50 C. 78 D. 58