What is the standard deviation of the data set?
9 14 23 15 6 18 27

a. 2.6
b. 3.0
c. 6.8
d. 7.4

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5