Perform the indicated operations and simplify the result so there are no quotients to complete the identity.tan ?(cot ? - cos ?) = ?
A. - sec2?
B. 0
C. 1 - sin ?
D. 1
Answer: C
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Solve the problem.An object is rolling with a driving force that suddenly ceases. The object then rolls 10 meters in the first second, and in each subsequent interval of time it rolls 80% of the distance it had rolled the second before. This slowing is due to friction. How far will the object eventually roll?
A. It will roll an infinite distance. B. 50.0 m C. 20.0 m D. 12.2 m
Divide. Leave your answer in exponent form. Assume that all variables in any denominator are nonzero.
A. 
B. 
C. 7x3y5
D. 
Give the coordinates of the circle's center and its radius.
?
?
A. 
B. ?
C. ?
D. ?
E. none of these
Solve.A rectangular box with volume 517 cubic feet is built with a square base and top. The cost is $1.50 per square foot for the top and the bottom and $2.00 per square foot for the sides. Let x represent the length of a side of the base in feet. Express the cost of the box as a function of x and then graph this function. From the graph find the value of x, to the nearest hundredth of a foot, which will minimize the cost of the box.
A. 8.83 feet B. 8.79 feet C. 8.91 feet D. 8.49 feet