The axis of symmetry for the graph of the function s1x) = 2x2 + bx + 10 2 + bx + 10 is x=6. What is the value of b?

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Which of the following shows the length of the third side, in inches, of the triangle below