In a certain college, 33% of the physics majors belong to ethnic minorities. Find the probability of the event from a random sample of 10 students who are physics majors.No more than 6 belong to an ethnic minority.
A. .0547
B. .9846
C. .9815
D. .913
Answer: C
Mathematics
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Solve the equation (x in radians and ? in degrees) for all exact solutions where appropriate. Round approximate answers in radians to four decimal places and approximate answers in degrees to the nearest tenth.cos2 x - cos x = 0
A. {? + 2n?}
B. 
C. 
D. 
Mathematics
Perform the indicated operations. Write the result using a radical. Assume that all variables represent positive values.
A. 
B. 
C. 
D. 
Mathematics
Change the word statement to an equation. Use x as the variable.
of a number plus 2 equals 15.
A. 
x = 2 + 15
B. 
(x + 2) = 15
C. 
x + 2 = 15
Mathematics
Use interval notation to write the solution set of the inequality.3x + 5 < 29
A. (8, ?) B. (-?, 8) C. (-?, 8] D. [8, ?)
Mathematics