Use the unit circle to find the indicated quantities.
tan (-7?); sin (-7?)
A. Undefined; -1
B. -1; -1
C. 0; 0
D. Undefined; 0
Answer: C
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Use the pattern in the sequence or chart to find the missing number.7, -28, 112, -448, 1792, 
A. 3136 B. -7168 C. -3136 D. 7168
Provide an appropriate response.2x - 7y = -175x + 3y = 19If your friend were going to solve this system of equations by first eliminating y, what general suggestions would you make so your friend could start on this in a systematic way?
What will be an ideal response?
Use the distributive property to rewrite the sum or difference as a product. Simplify the answer if possible.6a + 10a
A. -4a B. 30a C. 4a D. 16a
Find the value of the constant ?k so that the function is a probability density function in the indicated interval.
?
What will be an ideal response?