Find an equation of variation in which the following are true.y varies directly as x and inversely as z, and y = 10 when x = 2 and z = 4.
A. y = 
B. y = 23xz
C. y = 
D. y = 
Answer: C
Mathematics
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Find the Jacobian for the given transformation.
A. 4500 B. 100 C. 45 D. -100
Mathematics
Write an equation for the parabola.
A. y2 = -4x B. x2 = -4y C. y2 = 4x D. x2 = 4y
Mathematics
Change the following fraction to a mixed number.
A. 11
B. 
C. 12
D. 13
Mathematics
Write an algebraic equation and use it to solve the problem.Carla and Patrick rode stationary bikes for the same amount of time. Carla rode at 8 miles per hour, and Patrick rode at 6.5 miles per hour. If Carla rode 1.13 miles farther than Patrick, how long did they use the bikes?
A. They each used the bikes for 0.5 hour. B. They each used the bikes for 0.67 hour. C. They each used the bikes for 0.75 hour. D. They each used the bikes for 1 hour.
Mathematics