Simplify. Assume that all variables represent positive real numbers.
A. 5xy
)
B. 5xy
C. 5xy
D. 5xy
)
Answer: B
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The polar equation of a circle is given. Give polar coordinates for the center of the circle and identify its radius.r = 8 sin ?
A. C
, radius = 4
B. C(4, ?), radius = 4
C. C
, radius = 4
D. C(4, 0), radius = 4
Write a mathematical expression for the word phrase.-7 less than the sum of 5 and -12
A. (5 + (-12)) - 7 B. (5 - (-12)) - (-7) C. (5 + 12) - (-7) D. (5 + (-12)) - (-7)
Solve.From a 24-inch by 24-inch piece of metal, squares are cut out of the four corners so that the sides can then be folded up to make a box. Let x represent the length of the sides of the squares, in inches, that are cut out. Express the volume of the box as a function of x. Graph the function and from the graph determine the value of x, to the nearest tenth of an inch, that will yield the maximum volume.
A. 4.1 inches B. 4.0 inches C. 3.7 inches D. 3.8 inches
Solve the inequality.
?
?
A. 
B. 
C. 
D. 
E. 