For questions 7-9, the Big-Air balloons burst volume is approximately normally distributed with
a mean of 156 in and a standard deviation of 13.
7. What burst volume represents the 15th percentile
of balloons?
a) 23.4
b) 132.6 c) 142.5 d) 148.2
e) 169.5

Ihave a 69 and an 82. the 69 is worth 40% of my grade and the 82 is worth 15%. can someone tell me my current average grade.

You can find the constant of proportionality by finding the ratio of

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103