Simplify, if possible, by combining like terms.2st2 - 9st2
A. -7st2
B. 7st2
C. -7s2t4
D. Cannot be simplified
Answer: A
You might also like to view...
Compare the right-hand and left-hand derivatives to determine whether or not the function is differentiable at the point whose coordinates are given.
y = xy = 2x
A. Since limx?0+ f '(x) = -2 while limx?0- f '(x) = -1, f(x) is not differentiable at x = 0. B. Since limx?0+ f '(x) = 2 while limx?0- f '(x) = 1, f(x) is not differentiable at x = 0. C. Since limx?0+ f '(x) = 1 while limx?0- f '(x) = 2, f(x) is not differentiable at x = 0. D. Since limx?0+ f '(x) = 1 while limx?0- f '(x) = 1, f(x) is differentiable at x = 0.
Use the graph of a known basic function and a horizontal stretch or horizontal compression to sketch the function.f(x) = 
A. 
B. 
C. 
D. 
Find the mean proportional (geometric mean) of 15 and 20.
What will be an ideal response?
Use the given graph to determine the limit, if it exists.
f(x)
A. 2
B. -1
C. 
D. Does not exist