Answer:
a) 7/10
b) There is no improper fraction form for this
Answer:
I hope this helps:)
Every isosceles triangle has an axis of symmetry along the perpendicular bisector of its base. The two angles opposite the legs are equal and are always acute, so the classification of the triangle as acute, right, or obtuse depends only on the angle between its two legs.
The inverse function theorem says

We have

defined on
, for which we get

and

The derivative of
is

So we end up with

Answer:
100% sure your answer is 55, there was 55 questions on the test.
The expression for 8 times x is just 8x