Solve the equation in the real number system.3x3 - x2 - 21x + 7 = 0
A. { -3, 
, - 
}
B. 
C. { 3, 
, -
}
D. 
Answer: B
Mathematics
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Solve the problem.Use the sequence of equations to find the unknown sum.1 = 11 + 3 = 41 + 3 + 5 = 9 . . . . . . . . . 1 + 3 + 5 + . . . + 1201 = ?
A. 76,176 B. 361,201 C. 90,601 D. 89,975
Mathematics
Verify the identity.
= - 
What will be an ideal response?
Mathematics
Add the integers.-64 + (-47)
A. -112 B. 111 C. 112 D. -111
Mathematics
Use Bayes' rule to find the indicated probability.58% of the workers at Motor Works are female, while 34% of the workers at City Bank are female. If one of these companies is selected at random (assume a 50-50 chance for each), and then a worker is selected at random, what is the probability that the worker is female, given that the worker comes from City Bank?
A. 19.7% B. 58% C. 29% D. 17%
Mathematics