You recorded the time in seconds it took for 8 participants to solve a puzzle. The times were: 15.2, 18.8, 19.3, 19.7, 20.2, 21.8, 22.1, 29.4 find the mean. Find the median. Write the 5-number summary. Find the standard deviation

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers