Provide an appropriate response.In this expression, which two terms are like terms? 
A. 2xy and 16xy
B. 5 and 5x
C. 2x2y and 2xy2
D. 2xy and 2xy2
Answer: A
Mathematics
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (t + 4)i + (ln(sec t) - 6)j + 5k, -?/2 < t < ?/2
A. a = (csc t)T + (sec t)N B. a = (cos t)T + (cos t)N C. a = (sec t tan t)T + (sec t)N D. a = (sec2 t)T + (cos t)N
Mathematics
Find the sum of the series.
A. 119 B. 48 C. 130 D. 80
Mathematics
Multiply. Simplify, if possible.-49 ? 
A. - 
B. - 21
C. -12
D. -14
Mathematics
Solve the system.
y2 = -2x y2 = x + 2
A. (0.4, ±
)
B. (0.7, ±
)
C. (-0.7, ±
)
D. (-0.4, ±
)
Mathematics