Solve the inequality and graph the solution.
(x + 4) > 
(7x + 1)
A. 
B. (-?, -1)
C. 
D. (-1, ?)
Answer: C
Mathematics
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Determine the number of terms and identify the coefficient of each term of the expression.-2w + 7w2
A. 2; -2 B. 2; -2 and 7 C. 2; 2 D. 2; 2 and 7
Mathematics
Solve the problem.The focal length f of a lens with index of refraction n is 
= (n - 1)
where R1and R2 are the radii of curvature of the front and back surfaces of the lens. Express f as a rational expression.
A. f = 
B. f = 
C. f = 
D. f = 
Mathematics
Add or subtract. Write the answer in lowest terms.- 
- 
A. 
B. 
C. 
D. 
Mathematics
Use the vertical line test to determine whether the relation is a function.
A. yes B. no
Mathematics