Solve the quadratic inequality. Express your solution on a number line using interval notation.x2 - 10x + 21 ? 0
A. [3, 7]
B. (-?, 3] ? [7, ?)
C. (-?, 3]
D. [7, ?)
Answer: B
Mathematics
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Solve the problem.The map shows the states New Mexico, Oklahoma, Texas, Arkansas, and Louisiana. Find a route that starts in Arkansas and crosses each common state border exactly one time.
A. AR ? OK ? NM ? TX ? AR ? LA ? TX ? OK B. AR ? TX ? NM ? OK ? TX ? LA C. AR ? LA? TX ? NM ? OK ? AR D. No such route exists.
Mathematics
Write in the required form.
; mixed number
A. -3
B. -4
C. -5
D. -4
Mathematics
Find the center (h, k) and the radius r of the circle.x2 + y2 + 14x - 6y + 58 = 9
A. (h, k) = (3, -7), r = 3 B. (h, k) = (7, -3), r = 9 C. (h, k) = (-7, 3), r = 3 D. (h, k) = (-3, 7), r = 9
Mathematics
Solve the equation.x + 
= 7
A. 7, 10 B. 5, 2 C. -5, -2 D. 10
Mathematics