In a drill, Mark gives Fred a 45 meter head start. After t seconds, Fred is a distance 5t + 45 from the starting line and Mark is a distance of 6t from the starting line. How far ahead of Mark is Fred after t seconds?
Perimeter:

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?