Answer:
I wish you a merry Christmas and happy holidays may the new years bring you something good!!!!!!!
Step-by-step explanation:
Answer: 6*x*y
Step-by-step explanation:
u have to do 2*3 first
Ŷ<span> “y-hat” = predicted average y value for a given x, found by using the regression equation.
</span>p̂ “p-hat” -----> <span>proportion
</span>I can't type y-bar but its a straight line on the top of letter y.
If there is a picture could you please add it to your question?
It will help me find the correct anwser faster for you!
R = speed in still water
r + c = speed with current
r - c = speed against current
3.5(r + c) = 70
r + c = 20
c = 20 - r
4(r + c) = distance from pier to pier
5(r - c) = distance from pier to pier
4(r + c) = 5(r - c)
4(r + 20 - r) = 5(r - 20 + r)
80 = 10r - 100
180 = 10r
18 = r
The speed in still water is 18 km/hour
