Solve the problem.Find the area of the shaded region. Express the answer in terms of ?.

A. ? + 25 square units
B. 25 - ? square units
C. 25 - ? square units
D. 100 - 25? square units


Answer: B

Mathematics

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What part of the set of objects is shaded?

A.
B.
C.
D.

Mathematics

The vector v has initial position P and terminal point Q. Write v in the form ai + bj; that is, find its position vector.P = (3, 5); Q = (-1, -5)

A. v = -4i - 10j B. v = -6i - 8j C. v = -8i - 6j D. v = -10i - 4j

Mathematics

Two cars start moving from the same point. One travels south at 70 mi/h and the other travels west at 20 mi/h. At what rate is the distance between the cars increasing 2 hours later? Round the result to the nearest hundredth.

What will be an ideal response?

Mathematics

Find (x) and state any values that cannot be included in the domain of (x).P(x) = 64x3 + 8; Q(x) = 4x + 2

A. 18x2 - 7x + 4, x ? -2
B. 16x2 - 8x + 4, x ? - 
C. 16x2 + 8x + 4, x ? - 
D. 4x2 + 8x + 4, x ? 

Mathematics