Find the exact value of the trigonometric expression without the use of a calculator.cos (155°) cos (35°) + sin (155°) sin (35°)
A. - 
B. -2
C. - 
D. - 
Answer: A
Mathematics
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Find the phase shift of the function.y = -2 sin 
A. 4 units down
B. 
units to the left
C. 
units to the right
D. 4 units up
Mathematics
Graph the equation using the slope and y-intercept.4x + 2y = 8
A. 
B. 
C. 
D. 
Mathematics
Rationalize the denominator and simplify.
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operations. Write the resulting polynomial in standard form.(2x6 + 2x3 - 3) - (4x6 - 5x3 + 13)
A. -2x6 + 7x3 - 16 B. -2x6 + 7x3 + 10 C. -11x9 D. -2x6 + 6x3 + 10
Mathematics