There are 20 students in class and each student was asked to give a chart for 10 different counties in the state of Texas. What is the probability that at least 25% of the counties had a chart turned in?

Find parametric equations for the line. (enter your answers as a comma-separated list of equations. let x, y, and z be functions of t.) the line in the direction of the vector 5 i + 5 j − 6k and through the point (−4, 4, −2).

Use set buikder notation to represent the following set: {, -2, -1, 0}

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how