In trapezoid ABCD, O is the point of intersection from the diagonals. The area of AOD is 15 ft^2. The altitudes from B and O to the longer base area in a 5:3 ratio. Find the area of ABD and the area of MOC if M is the midpoint of the leg CG.

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

How do i multiply two digit numbers

What is the approximate value of the correlation coefficient for the given graph? a. 1 b. 5 c. 3 d. -1