It will take the seal 6.5 hours to swim 52 miles.
Square root of 8 = 2.82842712475
Square root of 50 = <span>7.07106781187
</span>
Sum = 9.89949494
If you would like to round, you can go ahead and round 9.89949494 to 9.9
Answer:
There are 3478761 ways to select the first 5 numbers
Step-by-step explanation:
As understood from the statement of this problem we assume that it does not matter the order in which the first 5 white balls are selected.
In this case it is a combination.
So, what we want to know is how many ways you can choose 5 white balls out of 55.
Then we use the formula of combinations:

Where you have n elements and choose x from them.
Then we look for:


7x-y=9
3x-y=5 (multiply by -1 both sides of the equation)
7x-y=9
-3x+y=-5 (now add both equations)
7x-3x-y+y=4
4x=4 (divide by 4 both sides of the equation)
x=1
y=3x-5=3×1-5=-2
y= -2
answer: x=1, y=-2
Answer:
the rigth arel
Step-by-step explanation: