Evaluate the expression 12-3y 2 + sqrt 2y-4 y )for y=3

-15 +  

Step-by-step explanation:

Given expression;

     12 - 3y² +

Where y = 3;

Insert the given value of y;

     12 - 3y² +  = 12 - 3(3)² +

                                    = 12 - 27 +

                                    = -15 +  

answer: true

step-by-step explanation:

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,