Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Two marbles are drawn from a bag in which there are 4 red marble and 2 blue marble. The number of blue marbles is counted.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find T, N, and B for the given space curve.r(t) = (t2 - 1)i + (2t - 10)j + 5k
A. T = 
i + 
j; N = 
i - 
j; B = -k
B. T = 
i - 
j; N = - 
i - 
j; B = -k
C. T = 
i + 
j; N = 
i - 
j; B = -k
D. T = 
i + 
j; N = 
i - 
j; B = k
Mathematics
Add or subtract. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics
Solve.An auditorium has 20 rows with 10 seats in the first row, 12 in the second row, 14 in the third row, and so forth. How many seats are in the auditorium?
A. 400 B. 620 C. 390 D. 580
Mathematics
Evaluate the integral using integration by parts.
dx
A. - 
x-7 ln 5x - 
x-6 + C
B. ln 5x + 
x-7 + C
C. - 
x-7 ln 5x + 
x-7 + C
D. - 
x-7 ln 5x - 
x-7 + C
Mathematics