The mass of a radioactive substance follows a continuous exponential decay model. A sample of this radioactive substance has an initial mass of and decreases continuously at a relative rate of per day. Find the mass of the sample after five days. Do not round any intermediate computations, and round your answer to the nearest tenth.

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explanation:

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.

“ a line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. the diameter is twice the size of the radius. a line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. a circle is the same as 360 small circle up the number 0 . i hope this .