Evaluate the sum using the given information.x1 = 0, x2 = -4, and x3 = 4
A. - 
B. - 
C. - 
D. - 
Answer: A
Mathematics
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Simplify.
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B. 
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D. 
Mathematics
Find the area.A rectangle has a length of 5 yards and a width of 9 feet. Express the answer in square feet.
A. 67.5 ft2 B. 45 ft2 C. 135 ft2 D. 48 ft2
Mathematics
Solve the problem.The distance d in miles that can be seen on the surface of the ocean is given by 
where h is the height in feet above the surface. How high (to the nearest foot) would a platform have to be to see a distance of 
A. 756 ft B. 130 ft C. 420 ft D. 114 ft
Mathematics
Rewrite the following using radicals; then simplify if possible. Assume that all variables represent nonnegative values.x1/7
A. 
B. 
C. 
D. 
Mathematics