Im doing graphing and solving quadratic functions, but I don't know how to do it. Could someone help please? 1.) y=-4x^2+12x-5

2.) y-6x^2-14x=3

3.) y-1=4x^2+8x
​

At a lunchron, guests are offered a selection of five different grilled vegetables and four different meats. in how many waya could one choose three vegetables and two meats?

Which of the following could be the ratio of the length of the longer leg 30-60-90 triangle to the length of its hypotenuse? check all that apply. a. 313 6 b. 3: 215 c. 18: 13 d. 1: 13 e. 13: 2 of. 3: 15

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)