Solve the problem.In a survey about the number of siblings of college students, the following probability table was constructed: 
What is the probability that a student has at most 2 siblings?
A. 0.42
B. 0.58
C. 0.22
D. 0.78
Answer: D
Mathematics
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Write the expression in the standard form a + bi.(2 - 9i) + (9 + 5i)
A. 11 + 4i B. -7 + 14i C. 11 - 4i D. -11 + 4i
Mathematics
Divide as indicated.
A. 4x4 + 16x2 - 40x B. 4x4 + 2x2 - 5x C. 32x3 + 16x - 40 D. 4x3 + 2x - 5
Mathematics
Express the following in interval notation.
A. (-6, -2] B. (2, 6] C. [-6, -2) D. [2, 6)
Mathematics
Convert the given measurement to the unit indicated.72.1 hm to dm
A. 721 dm B. 7.21 dm C. 72,100 dm D. 7210 dm
Mathematics