Answer:
2000
Step-by-step explanation:
Answer:
x and y
Step-by-step explanation:
Answer:
x=13
Step-by-step explanation:
vertical opposite angles are equal.
It wouldn't let me post, so I screenshotted:
It has become somewhat fashionable to have students derive the Quadratic Formula themselves; this is done by completing the square for the generic quadratic equation ax2 + bx + c = 0. While I can understand the impulse (showing students how the Formula was invented, and thereby providing a concrete example of the usefulness of abstract symbolic manipulation), the computations involved are often a bit beyond the average student at this point.
