Solve the equation and check your solution.x - 2 = 15
A. x = -13
B. x = 13
C. x = 17
D. x = -17
Answer: C
Mathematics
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Write as a number.Round 1931 to hundreds.
A. 1900 B. 1800 C. 2000 D. 1910
Mathematics
Use Descartes's rule of signs to discuss the possibilities for the roots of the equation. Do not solve the equation.4x8 + 7x6 + 6x4 + 5x2 + 4 = 0
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality and express the solution set in interval notation. Graph the solution set on the real number line.x + 6 < 10
A. x ? 16; (-?, 16]
B. x < 16; (-?, 16)
C. x < 4; (-?, 4)
D. x > 4; (4, ?)
Mathematics
Perform the indicated operation.-10(-9)
A. 100 B. 90 C. 80 D. -90
Mathematics