Answer:
9x+7
Step-by-step explanation:
Let's simplify step-by-step.
4x+17+5x−10
=4x+17+5x+−10
Combine Like Terms:
=4x+17+5x+−10
=(4x+5x)+(17+−10)
=9x+7
Answer:
850
Step-by-step explanation:
To find the midpoint just find the average between the two
1700/2=850
Answer:

Step-by-step explanation:
I'm never sure how far to go on these questions but I think what I'e done looks pretty nice. Essentially I simplified each radical, factored out each variable, combined the radicals after more simplification, and then picked the answer you were most likely looking for. I gave some alternatives in my work that are "simple" too, but the answer above is most likely I'd say.
Work is in the attachment, comment with any questions.
A regular oval shape, traced by a point moving in a plane so that the sum of its distances from two other points (the foci) is constant, or resulting when a cone is cut by an oblique plane which does not intersect the base.