Use cross multiplication to should get you the answer...
5/12
A squared + B squared = C squared
Answer:
<h2>a³-b³ = (a-b)(a²+ab+b²)</h2>
Step-by-step explanation:
let the two perfect cubes be a³ and b³. Factring the difference of these two perfect cubes we have;
a³ - b³
First we need to factorize (a-b)³
(a-b)³ = (a-b) (a-b)²
(a-b)³ = (a-b)(a²-2ab+b²)
(a-b)³ = a³-2a²b+ab²-a²b+2ab²-b³
(a-b)³ = a³-b³-2a²b-a²b+ab²+2ab²
(a-b)³ = a³-b³ - 3a²b+3ab²
(a-b)³ = (a³-b³) -3ab(a-b)
Then we will make a³-b³ the subject of the formula from the resultinh equation;
a³-b³ = (a-b)³+ 3ab(a-b)
a³-b³ = a-b{(a-b)²+3ab}
a³-b³ = a-b{a²+b²-2ab+3ab}
a³-b³ = (a-b)(a²+b²+ab)
a³-b³ = (a-b)(a²+ab+b²)
The long division problem that can be used is (a-b)(a²+ab+b²)
Answer:
The answer is C
Step-by-step explanation:
Answer:
She is not correct, the claim is wrong
Step-by-step explanation:
Here, we want to check if a claim
made is correct
We can represent the exponential function as;
y = I( 1 - r)^t
So in this case;
1 - r = 0.72
r = 1 - 0.72
r = 0.28
This is same as 28%
So what this mean is that we expect a decrease of 28% per day
There are 24 hours on a day
So the decrease per hour will be 28%/24 = 1.167%
So as we can see the claim is wrong
