Use the distributive property to rewrite the sum or difference as a product. Simplify the answer if possible.2c + 7c
A. 5c
B. -5c
C. 14c
D. 9c
Answer: D
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Find the y-intercepts and any x-intercepts.y = 2x2 + 3x - 9
A. y-intercept (0, -9), no x-intercepts
B. y-intercept (0, -9), x-intercept (-3, 0)
C. y-intercept (0, -9), x-intercepts (3, 0) and 
D. y-intercept (0, -9), x-intercepts (-3, 0) and 
Provide an appropriate response.Find the standard deviation for the following data set:2, 2, 2, 5, 5, 6, 6, 8, 8, 9
A. 6.21 B. 2 C. 2.49 D. 5
Find the exact value of the expression using a sum, difference, or double-angle identity.tan 
A. 2 - 
B. 
- 2
C. -2 - 
D. 2 + 
Use the given conditions to find an equation in slope-intercept form of each of the nonvertical lines. Write vertical lines in the form x = h.Perpendicular to x = 1; passing through (-1, -5)
A. -1x - 5y = 0 B. -5x - 1y = 0 C. x = -1 D. y = -5