0.4x+0.5y=2.5
1.2x-3.5y=2.5
elimination by using multiplication

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints

In the diagram, gef and hef are congruent. what is the value of x

Iam at home. /: i am playing video games. translate the following statement into symbolic form.