Q20. A sample of 900 students found that the average time spent studying was 1.3 hours on average with a standard deviation of 0.60. What does the 90% confidence interval for the mean study time for all students look like. Do not
calculate the interval.

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000

Walking at a constant rate of 8 kilometers per hour, juan can cross a bridge in 6 minutes. what is the length of the bridge in meters?