If f(x) = x ^ 3 + 2x ^ 2 - 3 , find f(2) . A ) -19 B ) -3 C) -1 D ) 5

13

Step-by-step explanation:

f(x) = x ^ 3 + 2x ^ 2 - 3

Let x=2

f(2) = 2 ^ 3 + 2 *2 ^ 2 - 3

      = 8 +2 *4 -3

      = 8 +8 -3

       =13

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

146%

step-by-step explanation: