The chemical element einsteinium-253 naturally loses its mass over time. When a sample of einsteinium-
253 was initially measured, it had a mass of 15 grams.
The relationship between the elapsed time t, in weeks, and the mass, Mweek (t), left in the sample is
modeled by the following function:
Mwock (t) = 15 - (0.79)
Complete the following sentence about the daily rate of change in the mass of the sample.
Round your answer to two decimal places.
Every day the mass of the sample decays by a factor of?

it is for sure .97

Step-by-step explanation:

Just had this question on khan academy

the answer is simply just 6n add the two together as they have an n

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true