Let $b$ and $c$ be constants such that the quadratic $-2x^2 + bx + c$ has roots $3+/sqrt{5}$ and $3-/sqrt{5}$. Find the vertex of the graph of the equation $y=-2x^2 + bx + c$.

Is 8/10 mile longer than 1/2

How did the enlightenment affect peoples attitudes toward political authority

A machine has 11 identical components which function independently. the probability that a component will fail is 0.2. the machine will stop working if more than three components fail. find the probability that the machine will be working.

Find two integers whose sum is - 3 and product is - 70

Whats the circumference of a 18 in pizza to the nearest hundreth

Which choice correctly describes this event? I will roll a standard die and land on 0. A) Certain B) Likely C) Unlikely D) Impossible

1) A survey of favorite colors showed 198 people chose green, 212 chose blue, and 187 chose red. If 39% of the people surveyed are children, ABOUT how many people surveyed were children? (use a calculator - show all work!)

Clarence writes the number - 240 to represent the amount he owes his brother Joe. What numbers should Clarence use to represent the other amounts given above?

What is the sum of - 7 and its additive inverse?

Create a slope that will be parallel to the slope provided which is 5/9 what is the parallel slope?