Select each point that is a solution to the system of inequalities graphed below. Question 4 options:

(0, –1)

(2, –5)

(–3, –2)

(1, –3)

(–2, –3)

Use the discriminant to describe the roots of each equation. then select the best description. 2m2 + 3 = m double root real and rational roots real and irrational roots non-real roots

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%

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.