Find the exact value of the indicated trigonometric function of ?.tan ? = - 
, ? in quadrant IIFind cos ?.
A. - 
B. - 
C. 
D. 
Answer: B
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Use logic to solve the problem.A farmer had a stone weighing 40 pounds that he used to weigh pigs, but the stone broke into 4 pieces. The farmer found to his surprise that with the four pieces, he could weigh any whole number from 1 to 40. What did each of the 4 pieces weigh?
A. 1, 4, 9, and 26 lb B. 1, 4, 8, and 27 lb C. 1, 3, 7, and 29 lb D. 1, 3, 9, and 27 lb
Write true or false for the statement.The sum of the measures of the angles in a triangle is 90°.
A. True B. False
Factor by grouping.x3 + 5x2 + 3x + 15
A. (x - 5)(x3 + 3) B. (x + 5)(x2 + 3) C. (x + 5x)(x2 + 3) D. (x + 5)(x2 - 3)
Find the requested probability.A family has five children. The probability of having a girl is 
. What is the probability of having exactly 3 girls and 2 boys?
A. .0313 B. .3125 C. .0625 D. .6252