What does s and s^2 stand for in standard deviation

Chris is 3 years older than Jacob. Nathan is eighteen years old. Two years ago the sum of all their ages was 59 years old. How old is Jacob?

Walt made a shape using squares that measured 6 inches on a side what is the perimeter of the shape

If 0° ≤ θ ≤ 90° and cosθ = 11 15, what is the value of sin (90° - θ) ?

Find the area of the triangle when the coordinates are (2.5,4.5), (2,0), (9,2)

Kate has a coin collection she keeps 7 of the coins in a box which is only 5% of her entire collection what is the total number of coins in kate coin collection

Give two examples of different measurements that are equivalent to 10 centimeters per second

Find the possible values for s in the inequality 12s - 20 ≤ 50 - 3s - 25.

14. Favorite School Subject Math 15% Science 20% English 35% History 30% Jenn recorded the favorite school subject of students at her school. She surveyed 700 students. How many more students chose English than Science?

The population of gray wolves in Wisconsin increased from 570 in 2007 to 660 in 2014. Find the percent increase in the wolf population.

Does the table represent an exponential function? Yes or No.