Find an equation of variation in which the following are true.y varies jointly as x and z; y = 250 when x = 25 and z = 15
A. y = 
xz
B. y = 
C. y = 93750xz
D. y = 
Answer: A
Mathematics
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Solve the problem.The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.01 inches. What percentage of bolts will have a diameter greater than 0.32 inches?
A. 47.72% B. 37.45% C. 2.28% D. 97.72%
Mathematics
Factor the trinomial completely.10y2 + 45y - 25
A. (10y - 5)(y + 5) B. 5(2y + 1)(y - 5) C. 5(2y - 1)(y + 5) D. prime
Mathematics
Perform the indicated operations. Write the answer in simplest form.
? 
A. 
B. 
C. 
D. 
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Mathematics