Write the number in standard form.The Johnsons have driven their car forty-two thousand, eight hundred two miles in the last few years.
A. 42,802
B. 4,282
C. 42,820
D. 420,802
Answer: A
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Solve the problem.Find the volume of the solid generated by revolving the region in the first quadrant bounded by the x-axis and the curve y = x cos x, 0 ? x ? ?/2 about the y-axis.
A. 
+ 2?2 - 4?
B. 
- 8?
C. 
- 4?
D. 
- 4?
Find the zeros of the quadratic function by completing the square. List the x-intercepts of the graph of the function.f(x) = x2 - 
x - 
A. x = 
, x = 
B. x = - 
, x = - 
C. x = - 
, x = 
D. x = 
, x = - 
Describe the natural domain of the function. f(x) = 
A. The set of all real numbers less than 6
B. The set of all real numbers except 6
C. The set of all real numbers
D. The set of all real numbers greater than 
Find the indicated root or state that the expression is not a real number.
A. ±4 B. 8 C. 16 D. 4