Find the area of the surface given by , where  and middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_082652004d4c43bf871a839dd" />.

?



A.
B. ?
C. ?
D. ?
E. ?

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Answer: C

Mathematics

Solve.Consider the formula T = 591 - 76 cos 2?, where ? is measured in degrees. To the nearest hundredth of a degree, what is the smallest positive value of ? for which the value of T will be 556?

A. 65.58° B. 28.29° C. 62.58° D. 31.29°

Multiply.(x - 7)(x2 + 7x + 2)

A. x3 + 14x2 + 47x + 14 B. x3 + 51x + 14 C. x3 - 47x - 14 D. x3 - 14x2 - 47x - 14

Solve the problem.The value of a certain make and model of used car can depend on several factors. The table gives data for the values of three Chevy Caprice station wagons. The value V is measured in dollars, where A is the age of the car in years, and C is the condition of the car rated on a scale of 1 to 10 (10 is excellent condition).The variables are found to be related by the equation  Use the information given in the table to write a matrix equation which when solved will yield the values of a, b, and c. Then, using the fact that the inverse of the matrix 

src="https://sciemce.com/media/4/ppg__file0518192205__f1q75g3.jpg" style="vertical-align: -23.0px;" /> is , find b.

A. b = 2200
B. b = - 1400
C. b = 2600
D. b = -1600

Graph the system of inequalities.x + 6y ? 6x + 6y ? 0 

A. No solution

B.

C.

D.