Amy & David are siblings who live 400km apart. They're going to have a week's holiday by exchanging houses. On the day they are starting their holiday, Amy leaves home at 8 a. m. and David at 10 a. m. They
both drive at 120 km/hr* on a motorway that travels directly between their houses.

At what time do they pass each other on the road?

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.

The measures of the angles in △abc are given by the expressions in the table. angle measure angle a 65° angle b (3x−10)° angle c (2x)∘ find the value of x. then find the m∠b and m∠c.

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.