Match the inequality with its correct representation.{x | x > 4}
A. (?, 4)
B. (4, -?)
C. (4, ?)
D. (-?, 4)
Answer: C
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Solve.The sum of three numbers is 13. The first number plus three times the second plus the third is 1. Twice the first minus the second plus the third is 15. Which of the numbers are odd numbers?
A. -7, -29 B. 29, 7 C. -7 D. 29
Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.x = 5 tan t, y = 4 sec t; 0 ? t ? 2?
A. 
- 
= 1; -? < x < ?
B. 
+ 
= 1; -? < x < ?
C. y = x2 - 9; -3 ? x ? 3
D. y = 4
; -? < x < ?
Write the following as an algebraic expression in u, u > 0.cos(tan-1 u)
A. 
B. u
C. 
D. 
Translate the sentence into an equation. Use x to represent the unknown number. A number increased by 15 equals 26.
A. 26x = 15 B. x + 26 = 15 C. x + 15 = 26 D. 15x = 26