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 = 93750xz
B. y = 
C. y = 
D. y = 
xz
Answer: D
Mathematics
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Determine whether the statement is true or false.If 9 + 2 = 19, then Canada is in North America.
A. True B. False
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The general form of the equation of a line is cx + dy = e, where not both c and d are 0. Find the general form of the equation.y = 
x - 5
A. 2x + 3y = -5 B. 2x + 3y = 10 C. 2x - 3y = 15 D. 3x - 2y = -15
Mathematics
Find an equation of a parabola that satisfies the given conditions.Focus (6, 1), directrix x = 4
A. (y - 1)2 = 4(x - 5) B. (y - 1)2 = 4(x - 6) C. (x - 6)2 = 4(y - 1) D. (x - 1)2 = 4(y - 5)
Mathematics
Find the exact value of the logarithmic expression.log1010,000
A. 40
B. 4
C. -4
D. 
Mathematics