Identify the function in standard form. 2x2 - 4x + 6 = 0 5x2 - 10x + 5 = 0 3x2 + 6x - 12 = 0 3x2 + 2x + 10 = 0

Standard form of a quadratic equation is;  

ax^2+bx+c=0  

According to the above equations, all of them are in standard form.

Step-by-step explanation:

p ÷ r = tan(x)

step-by-step explanation:

given that there is a figure below shows a right triangle: a right triangle is shown with hypotenuse equal to q units and the length of the legs equal to p units and r units.

graph is missing so i will create the graph as per given information.

the angle between the legs having lengths p units and q units is y degrees. the angle between the legs having lengths r units and q units is x degrees.

now we need to find about what is p ÷ r equal to.

so we can use trigonometric ratio tan(x)=[altitude]/[base] to find the value of p ÷ r, because p is the altitude and r is the base.

p ÷ r=tan(x)

hence final answer is p ÷ r=tan(x).