Solve.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. $370.10
B. $364.80
C. $362.40
D. $370.37
Answer: B
Mathematics
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Determine whether or not the equation is quadratic.x2 + 4 = 7x
A. Quadratic. B. Not quadratic.
Mathematics
Forces F1 and F2 act at the same point. Find the resultant force F and its magnitude.F1 = 
i + 
j, F2 = - 
i + 
j
A. F = - 
i - 
j ; 
= 
B. F = 
i + 
j ; 
= 
C. F = - 
i + 
j ; 
= 
D. F = 
i + 
j ; 
= 
Mathematics
Provide an appropriate response.Explain in your own words why equations of the form y = b have graphs that are horizontal lines.
What will be an ideal response?
Mathematics
Solve the problem.A certain state has a lottery game called Lotto Cash, in which one selects 6 numbers from 1 to 55. If the order of the six numbers does not matter, how many selections are possible?
A. 25,827,165 B. 28,989,675 C. 720 D. 330
Mathematics