Simplify. Remember to use absolute-value notation when necessary. If a root cannot be simplified, state this.
A. Not a real number
B. -3
C. 9
D. 3
Answer: D
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A boy is standing on a flat field and tosses his ball toward a second boy standing at the other end of the field. The path of the ball is a parabola, and the equation of the path is 
Based on this information, answer the question.What is the highest the ball will be above the flat field and for what value of x?
A. Highest height = 4 when x = 1 B. Highest height = 4 when x = 2 C. Cannot determine without additional information D. None of the above
Let the function src="https://sciemce.com/media/3/ppg__cognero__2.1_Functions_and_Function_Notation__media__d07d30e3-f032-4c1a-aa7a-621d92088390.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_81c6d5cb40b74253a9fcf0c2c" />.
be defined by 
, where x and 
are real numbers. Find
?
?
A. 
B. ?
C. 
D. ?
E. ?
Find the dimensions of a rectangle of area 400
that has the smallest possible perimeter.
a. 4 ft by 100 ft b. 1 ft by 400 ft c. 2 ft by 200 ft d. 20 ft by 20 ft
Find the midpoint of the line segment joining the two points.(0, 8) and (2, 3)
A. 
B. 
C. 
D. 