A parabola has a vertex at (4,8) and x-intercepts (-6,0) and (-2,0). Sam is writing the equation of this parabola. What is the value of a in her equation?

If the value of cos330°is√3/2 then find cos 165°.

At the county fair, the baxter family bought 6 hot dogs and 4 juice drinks for $12.90. the farley family bought 3 hot dogs and 4 juice drinks for $8.55. find the price of a hot dog and the price of a juice drink.

If on=8x-8,lm=7x+4,nm=x-5,and ol=3y-6