Complete the identity.sin 
= ?
A. -cos x
B. sin x
C. cos x
D. -sin x
Answer: A
Mathematics
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Find the slope and the y-intercept of the line.-2x + 6y = 12
A. Slope -3; y-intercept (0, 2)
B. Slope 3; y-intercept (0, -2)
C. Slope 
; y-intercept (0, 2)
D. Slope - 
; y-intercept (0, -2)
Mathematics
Find the tangential and normal components of the acceleration.r(t) = (t + 9)i + (ln(cos t) - 3)j + 1k
A. a = (-sec t tan t)T - (sec t)N B. a = (sec t tan t)T - (sec t)N C. a = (sec t tan t)T + (sec t)N D. a = (-sec t tan t)T + (sec t)N
Mathematics
Solve the equation.(y - 8) - (y + 4) = 7y
A. 
B. 
C. 
D. 
Mathematics
State the phrase as a mathematical expression. Use x to represent the variable.The difference between five times a number and twelve
A. 12 - 5x B. 5 - x + 12 C. 5x - 12 D. 12 + 5x
Mathematics