To find avg downstream is 39/3 = 13 mph
upstream is 20/4 = 5mph
the average of the 2 is the still water speed which is 8 mph
I hope this helps you
42×58=2436
Answer:
y=1/2x+6
Step-by-step explanation:
The length of the other leg of the right triangle is; 89.44 centimetres
<h3>Right triangles and the Pythagoras theorem</h3>
According to the question;
- We are required to determine the length, in centimetres of the other leg of the right triangle.
By the Pythagoras theorem;
Hence, It follows that;
Find the square root of both sides of the equation;
x = 89.44 centimeters
Read more on Pythagoras theorem;
brainly.com/question/343682
The answe is 1.7x10 exponent 5