A sum of money was divided among Jess, Adrian, and Mary in the ratio 4:3:5 respectively. Mary received $175.
How much more money did Jess receive than Adrian?

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?

Given sin∅ = 1/3 and 0 < ∅ < π/2 ; find tan2∅ a. (4√2)/9 b. 9/7 c. (4√2)/7 d.7/9

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2