Answer:

Step-by-step explanation:
Hello, let's note v the rate of the boat and r the rate of the current. We can write the following

It means that

But we can as well use the second equation:

and then

Hope this helps.
Do not hesitate if you need further explanation.
Thank you
The correct answer is C. Randomizing the groups and calculating the means and difference of the means.
Answer:
A
Step-by-step explanation:
got it right on the test
Answer:
61
Step-by-step explanation:
This composite function can be easily solved
First solve f(-2)
f(-2)=(-2)³+3
f(-2)=-8+3=-5
Now plug -5 for x in function g(x)
=2(5)²+2(5)+1
=50+10+1
=61