The amount of a certain toxin in the water is normally distributed with mean 72.4 mg and standard deviation 20 mg. the probability that the amount of toxin exceeds the safe limit is 0.14. what is the safe limit?

What are the lengths of the sides of the right triangle that is formed? Check all that apply. h K h-k x-h y-k The answer is third one and last one

What is the number 153 split in half

12.5 is 25% of what number

At the same time, two trains start toward each other on parallel tracks, 450 miles apart. Train A's constant rate is 55 mph. Train B's is 65 mph. How long before they pass each other?

46 Two light houses ash their lights every 30 seconds and 40 seconds respectively. Given that they last ashed together at 10:40 A. M., when will they next ash together? (Chapter 1)

The perimeter of Rectangle A is four times that of Rectangle B. Rectangle B is 7 cm long and 2 cm wide. Given that Rectangle A and Rectangle B are similar, what is the perimeter of Rectangle A?

Simplify 32 ⋅ 35. Simplify 4.510.

What is the tangent ratio an angle of a triangle whose opposite side is 3, adjacent side is 4, and hypotenuse is 5.

For gym class, Gracie keeps a record of how many miles she runs. For the first half of the semester she runs 23 miles, and her grand total at the end of the semester is 50 miles. Write an equation to model this situation.

The area of a rectangular concrete patio is 60 square meters. The patio is 6 meters wide. How long is it.