Solve the problem.The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing. If a 
length with diameter 2 inches costs $48.00 , how much will a 
length with diameter 
cost?
A. $221.57
B. $213.60
C. $216.00
D. $221.30
Answer: C
Mathematics
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Write the function using function notation. Let x be the independent variable and y be the dependent variable. Use the letter f to name the function.
= 2x2 + 1
A. y = 2f(x)2 + 
B. f(x) = 2x2 + 
C. f(x) = 2x2 + 3
D. y = 2f(x)2 + 2
Mathematics
Evaluate the expressing using a unit circle or state that the quantity is undefined. All angles are in radians.sec 
A. 
B. 
C. 
D. 2
Mathematics
Provide an appropriate response.Find the product: 5(x - 3y)
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the inverse of the function.f(x) = x2 - 4, x ? 0
A. f-1(x) = - 
B. f-1(x) = - 
C. f-1(x) = x2 + 4
D. f-1(x) = 
Mathematics