Find the exact value of the following expression without using a calculator.sin (-60°)
A. 
B. 
C. - 
D. - 
Answer: D
Mathematics
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Provide an appropriate response.Solve the system of equations using the substitution method: 2x - 3y = 8-x + 4y = -14
A.
(4, 0)
B.
(-2, -4)
C.
(2, -3)
D.
Mathematics
A pair of similar triangles is given. Write the corresponding angles and the ratios of the corresponding sides.
A. ?A ? ?P
?B ? ?R
?C ? ?Q
= 
= 
B. ?A ? ?P
?B ? ?R
?C ? ?Q
= 
= 
C. ?A ? ?P
?B ? ?Q
?C ? ?R
= 
= 
D. ?A ? ?P
?B ? ?Q
?C ? ?R
= 
= 
Mathematics
Answer the question.To solve for the lengths of the right triangle sides, which equation is correct? 
A. x2 = (3x)2 + (2x - 10)2 B. x2 + (3x)2 = (2x - 10)2 C. (2x - 10)2 = x2 + (3x)2 D. (2x - 10)2 + x2 = (3x)2
Mathematics
Decompose into partial fractions.
A. 
- 
B. 
+ 
- 
C. 
+ 
+ 
D. 
+ 
- 
Mathematics