Find the exact value of the indicated trigonometric function of ?.cos ? = 
, tan ? < 0Find sin ?.
A. - 
B. - 
C. -
D. - 
Answer: B
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Solve.Toni needs to cut a 5
- foot board into 3 equal pieces. How long should each piece be?
A. 2
ft
B. 1
ft
C. 5 
ft
D. 17 ft
Solve.Mahmoud had a credit balance of $126.95 on his debit card. He went to a department store and returned a set of napkins for a credit of $14.06, then charged a pair of shoes for $53.03 and a pair of sunglasses for $14.15, sales tax included. After the return and two purchases, what was the balance on his card?
A. - $73.83 B. $102.13 C. $208.19 D. $73.83
Graph the circle.x2 + y2 - 4x = -10y - 13 
A. 
B. 
C. 
D. 
If the sides of a triangle are a, b, and c and they satisfy a2 + b2 = c2, the triangle is a right triangle. Determine whether the triangle with the given sides is a right triangle.a = 5, b = 9, c = 14
A. Yes B. No