Solve by the substitution method. 3x - 13 = -y2x + 9y = -8
A. {(-5, -2)}
B. {(-5, 2)}
C. {(5, 2)}
D. {(5, -2)}
Answer: D
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Solve the problem. Use a numerical method to approximate the solution.A tin can has the property that the sum of its volume (in cubic inches) and surface area (in square inches) is exactly 
If the length of the can is equal to its diameter, find its radius.
A. 1.227 inches
B. 
inches
C. 
inches
D. 1.572 inches
Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = (-3x + 9)5
A. y = u5; u = -3x + 9; 
= -3(-3x + 9)5
B. y = u5; u = -3x + 9; 
= 5(-3x + 9)4
C. y = u5; u = -3x + 9; 
= -15(-3x + 9)4
D. y = 5u + 9; u = x5; 
= -15x4
Evaluate the spherical coordinate integral.
A. 
?2
B. 
?2
C. 
?2
D. 64?2
Simplify. Leave your answer in exponent form.(z6)0
A. z6 B. z C. 1 D. 0