The data in the figure below represents the number of stars earned by 100 performers in a talent competition.
What is the mean number of stars earned by the performers?
A. 2.5
B. 1.9
C. 2
D. 1.95
Answer: B
Mathematics
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Solve the problem.Enrollment in a business seminar increased from 65 people to 89 people. By what percentage did enrollment increase?
A.
| 73% |
B.
| 63.1% |
C. 36.9%
D.
| 27% |
Mathematics
Find the angle between the vectors u and v. Express your answer in degrees and round to the nearest tenth of a degree.
u = 
, v = 
A. 38° B. 90° C. 38.2° D. 51.8° E. 52°
Mathematics
Give the domain and range of the function.f(x) = -3x - 9
A. Domain: (-?, ?); range: (-?, -9) B. Domain: (-?, ?); range: (-?, ?) C. Domain: (0, ?); range: (-?, 0) D. Domain: (-3, ?); range: (-?, 9)
Mathematics
Give the additive inverse of the number.-1.6
A. 
B. 1.6
C. -1.6
D. 0
Mathematics