De District Software A Explorers Scavenge
M How can some ani
New Tab Grades X A+ 20/21 LA-Math.
A* 20121 LA Math 6D
Describing Data in a Dot Plot
V
Miles Emilia Ran Each Week
The dot plot shows the number of miles Emi
each week.
Which is true of the data in the dot plot?
O The data is symmetric.
• The center of the data is 3.5.
O There is a peak
at 3.
The spread is from 1 to 6.
Intro

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

Explain how you can use the associative property to evaluate (7x50)x4.

George has seven boxes of five pencils. giulio three boxes of eight pencils. one of the boys arranges all his pencils equally into two groups. was this george or giulio how many are in each group explain