The mass of a radioactive substance follows a continuous exponential decay model. A sample of this radioactive substance has an initial mass of 648 kg and decreases continuously at a relative rate of 5% per day. Find the mass of the sample after four days.

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8

Jessa bought a yoyo from a company that claims that, with each retraction, the string rolls up by 60% of the original length. she sets up a tape measure and throws the yoyo 3 times. her data are charted below. throw length of string (feet) 1 3 2 1.8 3 1.08 jessa wants to find the sum of the length of string after 10 throws. what is the sum of the lengths, rounded to the nearest hundredth?

State if it is acute obtuse or right