if a sample of 21 runners were taken from a population of 580 runners, could refer to the mean of how many runners' times? A. 21 B. 580 C. Neither 21 nor 580 D. Both 21 and 580

How do I find answer to : x2+4x+5=

2x2 + 24x + 72 = 0 options: {-6} {-6,0} {-9,-6, 0} {-9,-4}

Fruit juice makes up 2/3 of the liquid ingredients in Alonzo's punch recipe. Estimate how many gallons of fruit juice are needed to make 8 1/2 gallons of punch.

Jack has 120 songs on his music player summer rock summer jazz in the restroom classical pieces if his music players on random shuffle mode probability that it will play a classic pieces is 2/5 and the probability that it will play a jazz piece is

What is the first quartile of the data displayed in this box-and-whisker plot? 43.5 113.0 99.5 143.0 Untitled Box-and whisker plot with five-number summary 84, 99.5, 113, 143, 170.

The chess club has 18 students. How many different teams of 4 can be formed for competition?

B/30 = 5/6. What is b?

Line segment EF has a length of 5 units. It is translated 5 units to the right on a coordinate plane to obtain line segment E′F′. What is the length of E′F′? 5 units 6 units 10 units 25 units

Lorenzo signed a two-year contract with his wireless tablet computer company for a data plan that costs $15.99 per month. There is an early termination fee of $249. After Lorenzo was5 months into his contract, he cancelled his service.

What is the perimeter of triangle ABC