If the number is negative, write it with a raised negative sign; if the number is positive, write it in two ways.Joan lost 
pounds in one week when she started jogging every day.
A. 
pounds or 
pounds
B. 
pounds
C. 
pounds
D. 
pounds
Answer: D
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Simplify the expression. Assume that all variables are non-negative.
A. x - 16
B. (x - 1)5
C. (x - 1)5
D. (x - 1)4
Graph the function.f(x) = 
x
A. 
B. 
C. 
D. 
?Use the position equation s = -16t2 + v0t + s0 to write a function that represents the situation and give the average velocity of the object from time t1 to time t2.An object is thrown upward from a height of 38 feet at a velocity of 84 feet per second. t1 = 1, t2 = 3
A. ?s= -16t2+ 38t + 84; avg. velocity = 79 ft/s B. ?s = -16t2+ 84t + 38; avg. velocity = 125 ft/s C. ?s = -16t2+ 38t + 84; avg. velocity = -26 ft/s D. ?s= -16t2+ 84t + 38; avg. velocity = 20 ft/s E. ?s= -16t2 + 84t + 38; avg. velocity = 40 ft/s
Find all real solutions. Do not use a calculator.x3 - 5x2 + 6x = 0
A. {0, 3, 2} B. {-3, -2} C. {0, -3, -2} D. {3, 2}