Answer:
If AB and CD are perpendicular, (slope of AB) x (slope of CD) = -1
9/a = -1
a = -9
The answer is 27.625 !
hope this helpss !!
Answer:
The answer is 65%
Step-by-step explanation: Divide 60 by 39 and multiply by 100. So it will look like 39/60=0.65*100=65%. I hope this helps. :)
<u>Answer:</u>
There are 243 ducks in the preserve.
<u>Explanation:</u>
Given:
In a wildlife preserve, 45 ducks are captured, tagged, and released.
Later, 200 ducks are examined, and two of them are tagged.
To Find:
To estimate how many ducks are in the preserve =?
Solution:
Now, we know that, out of 200 2 ducks are tagged, which means remaining 198 ducks are untagged.
Now, total ducks count = ducks with tags + ducks with out tag
Total ducks count = 45 + 198
Total ducks count = 243
Hence, there are 243 ducks in total.
