Cathy and tina drove to the beach at an average speed of 40 miles per hour. they returned by the same route at an average speed of 25 miles an hour. the total driving time was 13 hours. how far away was the beach?

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

Ihave a triangle with a 60 degree angle. lets use d for that angle. what are the values of e and f if d is 60 degrees? and what do you notice about the values of e and f?

Heather is riding a quadratic function that represents a parabola that touches but does not cross the x-axis at x=-6