Use the given information to find the exact value of the trigonometric function.sec ? = 4, ? lies in quadrant I
Find cos 
.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Which of the following is not true about similar Polygons?
A. ?If two corresponding angles between two polygons are congruent, then the polygons are similar. B. ?If A = 30?, B = 60?, then B' = 60?. C. ?If A = ?50?, A' = 50?, then the triangles are similar. D. If B = 50?, C = 60?, then A = 70?. E. ?If A, B, and C are each congruent to A', B', and C' respectively, then the triangles are similar. F. ?None of the above.
Mathematics
Solve the system by addition.x + 6y = 122x + 7y = 14
A. {(-2, 0)} B. ? C. {(0, 2)} D. {(1, 1)}
Mathematics
Decide whether the statement is true or false.sin 86° > sin 24°
A. True B. False
Mathematics
List the terms of the expression.6 - 6a + 8b
A. 6, 6a, 8b B. 6, -6a, 8b C. 6, -6, a, 8, b D. -6, 8b
Mathematics