If f(x) = 2x2 +5/(x-2), complete the following statement:
f(3) =

f(3) = 9

Step-by-step explanation:

when we have f(x) that means function of any number. when we have a number in that function we plug it in our equation for all X's. Therefore, when we have f(3) we plug it in to all X's which looks like this

notice how I multiplied at the top first. you also want to apply the rules of PEMDAS.

Hope this helps!

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c