Roberto received the same score on each of five exams, and his mean score is 88. Find his median score and his modal score.
?
A. median 83, mode 78
B. median 93, mode 93
C. median 88, mode 88
D. median 78, mode 78
E. median 93, mode 83
Answer: C
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Write the sentences as a system of inequalities in two variables. Then graph the system.The sum of the x-variable and the y-variable is at least 7. The x-variable added to the product of 2 and the y-variable does not exceed -2.
A. x + y ? 7
x + 2y ? -2
B. x + y ? 7
2x + y ? -2
C. x + y ? 7
2x + y ? -2
D. x + y ? 7
x + 2y ? -2
Find the indicated roots.Seventh roots of 1; trigonometric form
A. -1, cos 
+ sin 
, cos 
+ sin 
, cos 
+ sin 
,
cos 
+ sin 
, cos 
+ sin 
, cos 
+ sin 
B. 1, cos 
+ sin 
, cos 
+ sin 
, cos 
+ sin 
,
cos 
+ sin 
, cos 
+ sin 
, cos 
+ sin 
C. 1, cos 
+ sin 
, cos 
+ sin 
, cos 
+ sin 
,
cos 
+ sin 
, cos 
+ sin 
, cos 
+ sin 
D. -1, cos 
+ sin 
, cos 
+ sin 
, cos 
+ sin 
,
cos 
+ sin 
, cos 
+ sin 
, cos 
+ sin 
Solve the problem.A line from the top of a cliff to the ground passes just over the top of a pole 7.0 ft high and meets the ground at a point 8.0 ft from the base of the pole. If the point is 88 ft from the base of the cliff, how high is the cliff? Round to the nearest unit.
A. 6 ft B. 616 ft C. 77 ft D. 4928 ft
Use Pascal's triangle to expand the binomial.(x - 2y)6
A. x6 - 12x5y - 64x4y2 - 40x3y3 - 64x2y4 - 12xy5 - 2y6 B. x6 - 12x5y + 24x4y2 - 36x3y3 + 24x2y4 - 12x y5 + 2y6 C. x6 - 12x5y - 48x4y2 - 144x3y3 - 192x2y4 - 192xy5 - 64y6 D. x6 - 12x5y + 60x4y2 - 160x3y3 + 240x2y4 - 192xy5 + 64y6