Above is a graph of a proportional relationship. explain the significance of the following points on this line: 1. (1, 3) 2. (0, 0) 3. (3, 9)

What is the standard form of -5x^2+2x^4-11+x^3+3x

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions