Provide an appropriate response.Find the indicated part of the right triangle in the given figure by the most direct method. 
A. 36.4°
B. 42.4°
C. 47.7°
D. 53.6°
Answer: B
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Which of the following types of extensions can help eliminate down-time and encourage metacognitive activity?
a. Having students write their own, related problems to pose to others b. Having students prepare to present their solution to the rest of the class c. Asking students if they can come up with another way to solve the given problem d. All of the above
Suppose ? is an angle in standard position. Given an equation of the terminal side of ?, give the exact value of the indicated trigonometric function(s). Rationalize denominators if necessary.7x + 4y = 0, Quadrant IIFind 
A. 
B. 
C. - 
D. 
Solve the problem.Find the image of triangle ABC for the dilation with center O and scale factor 3.
A. 
B. 
C. 
D. 
Divide.
A. 
+ 
i
B. 
- 
i
C. - 
- 
i
D. - 
+ 
i