Math Answers

An element with mass 730 grams decays by 28.8% per minute. How much of the element is remaining after 10 minutes, to the nearest 10th of a gram?

How is a percentile rank used in real life

Throw a single die and let the random variable X be the number on the die. construct the probability distribution including possible value of X and find the mean of the distribution.

Prove or disprove that there exists exactly two regular graphs

Find all trees T where 25% of vertices of T have degree 1 and the remaining 75% of the vertices of T have another degree(a fixed degree)

Find all trees T where 75% of the vertices have degree 1 and the remaining 25% of the vertices of T have another degree(a fixed degree)

The volume, V cm³, of a metallic cube of side length x cm, is increasing at the constant rate of 0.216 cm3 s^-1 .

a)Determine the rate at which the side of the cube is increasing when the side length reaches 6 cm.

b) Find the rate at which the surface area of the cube, A cm², is increasing when the side length reaches 6 cm.

find all trees T where two-thirds of the vertices of T have degree 1 and the remaining one-third of the vertices have degree 3

Prove or disprove that there exists exactly two regular graphs

Find all trees T where 25% of the vertices of T have degree 1 and the remaining 75% of the vertices of T have another degree(a fixed degree)