Solve the problem.Evaluate 
at (u, v) = (1, 5) for the function w = xz + yz - z2; x = uv, y = uv, z = u.
A. -2
B. 20
C. 0
D. 18
Answer: D
Mathematics
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Use the vertical line test to determine if y is a function of x.
A. Not a function B. Function
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Add or subtract the rational numbers. Express the sum or difference as a rational number in lowest terms.
- 
A. 
B. - 
C. 
D. 
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Jim drove 288 miles. Jim's brother made the same trip at a speed 16 miles per hour slower than Jim did and required an extra 
hours. Find Jim's rate and time.
?
A. 64 mph, 2.5 hr B. 58 mph, 4.5 hr C. 64 mph, 4.5 hr D. 58 mph, 2.5 hr E. not possible
Mathematics
Solve the equation by making an appropriate substitution.(-8x + 5)2 + 5(-8x + 5) - 36 = 0
A. 
B. 
C. 
D. {4, -9}
Mathematics