Solve the problem.Suppose that y is inversely proportional to x and that y = 17.5 when x = 5. Find the constant of proportionality k. Then use y = 
to find y when x = 25.
A. k = 3.5; y = 87.5
B. k = 95; y = 3.8
C. k = 80; y = 3.2
D. k = 87.5; y = 3.5
Answer: D
Mathematics
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Solve the problem.Suppose that 
= 5. Find 
and 
.
A. 9; 5
B. 20; 
C. 4; -5
D. 20; -5
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Determine whether the given ordered pair is a solution to the system.(-6, 1)
A. no B. yes
Mathematics
Factor completely, or state that the polynomial is prime.48x4y - 3y5
A. 3(4x2 + y2)(2x + y)(2x - y) B. 3y(4x2 + y2)(2x + y)(2x - y) C. 3y(16x2 + y2)(4x + y)(4x - y) D. prime
Mathematics
Solve the problem.Find the percent of the area under the standard normal curve between 
and 
A. 43.5% B. 43.4% C. 43.9% D. 43.1%
Mathematics