Which characteristics best describe an acute isosceles triangle?
i. two sides meet at a 90° angle.
ii. all side lengths are equal.
iii. all angles are less than 90°.
iv. two sides are equal in length.

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

How do i simply this radical expression?