Write the expression without using absolute value symbols.
?
?
A. - ( x + 4)
B. x - 4
C. x + 4
D. - ( x - 4)
E. none of these
Answer: D
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Write the standard form of the equation of the circle with radius r and center (h, k).r = 4; (h, k) = (0, 0)
A. (x - 4)2 + (y - 4)2 = 4 B. (x - 4)2 + (y - 4)2 = 16 C. x2 + y2 = 4 D. x2 + y2 = 16
Translate to a system of two equations, then solve.Justin and Tisha are hiking north along the same trail. Tisha is hiking at a comfortable rate of 2 mph and passes a large hollow hickory tree at 4:36 PM. Justin is speeding along at a brisk rate of 4 mph and passes the tree at 5:06 PM. At what time will Justin catch up to Tisha?
A. 5:31 PM B. 5:36 PM C. 5:51 PM D. 5:46 PM
Use the boundedness theorem to determine whether the polynomial function satisfies the given condition.The polynomial f(x) = x5 + 10x4 - 25x3 - 10x2 + 24x has no real zero less than -8.
A. Yes, the boundedness theorem shows that the polynomial has no real zero less than -8. B. No, the boundedness theorem does not show that the polynomial has no real zero less than -8.
Solve the system using a graphing calculator capable of performing row operations. Give solutions with values correct to the nearest thousandth.
x - 0.9y + z = -8
x - y + 2z = 
6.2x + 16y - 5z = 
A. {(4.729, 7.426, 3.652)} B. {(3.628, 5.029, 3.719)} C. {(-4.259, 3.107, 2.517)} D. {(-5.072, 3.306, 3.760)}