What is the size of angle BAC?

76°

Step-by-step explanation:

ABC is an Isosceles triangle and angle ABC is given as 52°

since xy is parallel to BC we can conclude that ACB is also 52°

The sum of interior angles in a triangle is equal to 180°

52° + 52° + BAC = 180°

104° + BAC = 180°

BAC = 76°

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system