Given, (9x - 4)(9x + 4) = ax² - b
From algebraic identities:
We know, (a + b)(a - b) = a² - b²
Now, 81x² + 36x - 36x - 16 = ax² - b
81x² - 16 = axis² - b
So ax² = 81x²
a = 81
-b = -16
b = 16
Solution
Therefore, the value of a is 81.
<h2>MyHeritage</h2>
A=12
120% of a =80% of b
120%a = 80%b
120a/100 = 80b/100
Divide through by 100
120a = 80b
Divide through by 80
120a/80 = b
But a=12
120x 12/80 = b
18 = b
b = 18
a+b = 12 + 18 = 30
Answer:
6/10
Step-by-step explanation:
i think sorry if incorrect
Answer:
Width is 2 if that's what you were looking for.
Step-by-step explanation:
I'm guessing it's a rectangle and you want the width?
22-9-9=2w
2w=4
The width is 2
Ella has 3 apples. brad has 2 apples. sarah has 8 apples. how many apples do they have altogether?
