Find the area of the shaded region. Write the answer as a polynomial in descending powers of x.(7x + 10)

A. 21x2 - 70x - 100
B. 21x2 - 40x + 100
C. 21x2 + 100x - 100
D. 21x2 - 40x - 100


Answer: D

Mathematics

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Solve.The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 4 sec when the length is 64 inches, what is the period when L = 3.0625 inches?

A. 0.875 sec B. 5 sec C. 4.75 sec D. 4.25 sec

Mathematics

Use transformations of graphs to sketch the graphs of y1 and y2. Graph y2 as a dashed curve.y1 = , y2 =  + 4

A.

B.

C.

D.

Mathematics

Evaluate the difference quotient for the function. ? f (x) = 2x - 7 ?

A. -7
B.
C. 7
D. 2x + 7
E. 2

Mathematics

Solve.In order to make a profit an automobile dealer must sell at least 180 vehicles a month. The dealer plans to sell x units of one model and y units of another model. This can be represented by . Graph the inequality.

A.

B.

C.

D.

Mathematics