A solution of a system of linear equations

x - y = 5
- 3 x + y = - 1

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?