Evaluate the expression.(-10)2
A. 100
B. 20
C. -20
D. -100
Answer: A
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A fixed point of f is a value of x that satisfies the equation f(x) = x; it corresponds to a point at which the graph of f intersects the line y = x. Find all the fixed points of the function. Use preliminary analysis and graphing to determine good initial approximations. Round approximations to six decimal places.f(x) = 3 sin x on [0, 2?]
A. x = 0 and x ? 2.389974 B. x = 0 and x ? 1.756641 C. x = 0 and x ? 2.167752 D. x = 0 and x ? 2.278863
Find the exact value of the expression.cos 40° cos 20° - sin 40° sin 20°
A. 
B. 
C. 
D. 
Suppose that the length of a rectangle is 5 and one-third times as long as its width. The area of the rectangle is 1,728 square centimeters. Find the length and width of the rectangle.
A. The width of the rectangle is 18 and the length of the rectangle is 96. B. The width of the rectangle is 23 and the length of the rectangle is 106. C. The width of the rectangle is 17 and the length of the rectangle is 16. D. The width of the rectangle is 20 and the length of the rectangle is 101. E. The width of the rectangle is 16 and the length of the rectangle is 96.
Graph and write interval notation for the compound inequality.3 ? x ? 7
A. [3, 7)
B. (3, 7)
C. (3, 7]
D. [3, 7]