Perform the division. Write the answer with positive exponents.
A. 4x3 + 5x2 - 7
B. 4x3 - 3x2 - 7 + 
C. -4x3 + 3x2 + 7 - 
D. 4x3 - 3x2 - 7
Answer: B
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Rewrite the inequality using interval notation. Then graph the inequality.0 < x < 5
A. (0, 5)
B. [0, 5)
C. (0, 5]
D. [0, 5]
In calm waters, the oil spilling from the ruptured hull of a grounded tanker spreads in all directions. Assuming that the polluted area is circular, determine how fast the area is increasing when the radius of the circle is 20 ft and is increasing at the rate of 1/6 ft/sec. Round to the nearest tenth if necessary.
What will be an ideal response?
Find the foci of the ellipse.36(x - 3)2 + 9(y + 3)2 = 324
A. (3, 3), (3, -9)
B. (3- 3
, -3), (3+ 3
, -3)
C. (-3, 3 - 3
), (-3, 3 + 3
)
D. (3, -3 - 3
), (3, -3 + 3
)
Find the numbers at which f is continuous. At which numbers is f discontinuous?f(x) = -5x2 + 2x
A. continuous for all real numbers except x = 
B. continuous for all real numbers except x = -5
C. continuous for all real numbers
D. continuous for all real numbers except x = - 