A random sample of 8 students showed that their test scores out of 100 were as follow: 80, 78, 95, 74, 68, 99, 100, 85. Find the standard deviation. Group of answer choices 11.98 82.5 None of these answers. 84.9 11.3

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

Rewrite the following quadratic functions in intercept or factored form. show your work. f(t) = 20t^2 + 14t - 12