Solve the equation.2(y + 2) = 3(y - 7)
A. -17
B. -25
C. 25
D. 17
Answer: C
Mathematics
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Find the unit tangent vector of the given curve.r(t) = 12t5i - 4t5j + 3t5k
A. T = 
i + 
j + 
k
B. T = 
i - 
j - 
k
C. T = 
i - 
j + 
k
D. T = 
i - 
j + 
k
Mathematics
Plot the following real numbers on the real number line. ? -3.5 ?
A. 
B. 
C. 
D. 
E. 
Mathematics
Rationalize the denominator. Assume that no radicands were formed by raising negative numbers to even powers. 
A. 
B. 
C. 
D. 
Mathematics
Check to see if the given number is a solution for the equation.7x + 4 = 2x + 19; check x = 3
A. 3 is a solution. B. 3 is not a solution.
Mathematics