Answer:
81-25k²
Step-by-step explanation:
We need to write the expression for "The quantity 81 minus 5k, squared".
Square of any number x is given by x².
Square of 5k is given by : (5k)²= 5²×k²=25k²
Now subtract 25k² from 81.
It means we get : 81-25k². It is required expression.
Step-by-step explanation
well all you need to do is try your best
NA = AL
<ANL = <ALN = 45 because <NAL = 90
Answer
45
