Use a sum or difference identity to find the exact value.sin 185° cos 65° - cos 185° sin 65°
A. - 
B. - 
C. 
D. - 
Answer: C
Mathematics
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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.Vertices at (0, 4) and (0, -4); asymptotes y = 
x and y = - 
x
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Provide an appropriate response.Perform the indicated operations without a calculator: 
=
A. 4 B. 9 C. 6 D. 2
Mathematics
Solve the problem.Find the value for x in the cube. Use exact values. 
3 ft
A. 3
ft
B. 9 ft
C. 3 ft
D. 3
ft
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
÷ 
A. 
B. 
C. 
D. 
Mathematics