Use the right triangle shown below and find the missing length. Give an exact answer and a decimal approximation rounded to two decimal places. 
a = 32, b = 60
A. c = 68, -68
B. c = 1156
C. c = 68
D. c = 4624
Answer: C
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Graph the point symmetric to the given point.Plot the point (7, 10), then plot the point that is symmetric to (7, 10) with respect to the y-axis.
A. 
B. 
C. 
D. 
Choose the graph of the equation.y2- x2- z2= 1
A. 
B. 
C. 
D. 
Use the Binomial Theorem to expand the binomial.(x+ 4y)4
A. x4 + 16x3y + 96x2y2 + 256xy3 + 256y4 B. x4 + 4x3y + 6x2y2 + 4xy3 + y4 C. x4 + 16x3y + 96x2y2 + 16xy3 + 256y4 D. x4 + 4x3y + 96x2y2 + 128xy3 + 256y4
So far in art class, a student’s quiz scores are 89%, 89%, 82%, and 77%. What score does the student need on the fifth quiz to have a mean quiz score of 86%? All the quizzes have equal weights. Round your answer to the nearest whole number.
a. 85% b. 84% c. 92% d. 93%