Find an equation of variation for the given situation.y varies jointly as x and z, and y = 111.51 when x = 5.9 and z = 9
A. y = 5.1xz
B. y = 
C. y = 2.1xz
D. y = 0.21xz
Answer: C
Mathematics
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Find the exact value for the expression.cot 
A. - 
B. - 
C. -1
D. - 
Mathematics
Convert the units using two or three unit fractions.8640 sec = 
day
A. 8
B. 
C. 
D. 
Mathematics
Solve the problem.In a probability model, which of the following numbers could be the probability of an outcome:0, 0.2, -0.01, - 
, 
, 
, 1, 1.5
A. 0, 0.2, -0.01, - 
, 
, 1
B. 0, 0.2, 
, 1
C. 0.2, 
, 1
D. 0, 0.2, -0.01, 1, 1.5
Mathematics
Simplify.
A. 3
B. 
C. 4
D. -3
Mathematics