Answer:
The mean number of children is 3.
Step-by-step explanation:
Answer:
-x
Step-by-step explanation:
12x-13x is -1x which can also be written as -x
Now I’m ngl my math might be wrong but I ended up with 1131/48
As a decimal I got 23.6
Answer:
Step-by-step explanation:
An exponential function is of the form

where a is the initial value and b is the growth/decay rate. Our initial value is 64. That's easy to plug in. It goes in for a. So the first choice is out. Considering b now...
If the rate is decreasing at .5% per week, this means it still retains a rate of
100% - .5% = 99.5%
which is .995 in decimal form.
b is a rate of decay when it is greater than 0 but less than 1; b is a growth rate when it is greater than 1. .995 is less than 1 so it is a rate of decay. The exponential function is, in terms of t,

So what are u trying to say here. She read in 1/20 of what, minutes, seconds, or what