Simplify.
A. - 1
B. 3
C. 1
D. 
Answer: C
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Simplify. Assume that all variables represent positive real numbers.
- 
A. (5x3y2 + 4x4y)
B. (5x6y4 - 4x9y)
C. (5x3y2 + 4x4y)
D. (5x3y2 - 4x4y)
Write an equation for the hyperbola.vertices (-7, 2), (-7, 18); e = 
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Estimate the sum as indicated. Then answer the question.Estimate the following sum by first rounding to the nearest hundred. Does the estimate give you reason to doubt the stated sum?
A. Estimate: 126,400 ; yes B. Estimate: 126,400 ; no C. Estimate: 126,200 ; yes D. Estimate: 126,200 ; no
Graph the linear function by plotting the x- and y-intercepts.40x + 20y - 160 = 0
A. intercepts: (0, 8), (4, 0)
B. intercepts: (0, -8), (4, 0)
C. intercepts: (0, 8), (-4, 0)
D. intercepts: (0, -8), (-4, 0)