Answer:
Step-by-step explanation:
we know that
The area of the figure is equal to the area of rectangle plus the area of semicircle
step 1
Find the area of rectangle
The area of rectangle is equal to
where
substitute
step 2
Find the area of semicircle
The area of semicircle is equal to
we have
---> the radius is half the diameter
substitute
step 3
Find the area of the figure
The complete factorization of the equation 81x² - 100 is; (9x - 10)(9x + 10)
<h3>How to factorize quadratic equations?</h3>
We are given the quadratic equation;
81x² - 100
Now, according to quadratic identities, we know that;
(a + b) * (a - b) = a² - b²
Now, our equation can also be expressed as;
81x² - 100 = 9²x² - 10²
Thus, applying the quadratic identity gives us;
(9x + 10)(9x - 10)
Read more about factorization of quadratic equations at; brainly.com/question/1214333
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C but i could be wrong lol very wrong.
Answer:
the fee at bank A will be more than the fee at bank D only when the checking account balance is more than $400 dollars.
Step-by-step explanation:
