Step-by-step explanation:
In this question, we're solving for x(a) + w(a).
What this means is that we would be adding both expressions together.
Your expression should look like this:
Solve:
When you're done solving, you should get 10a²+22a.
This means that 10a²+22a would be the correct answer.
I hope this helped you out.Good luck on your academics.Have a fantastic day!10a^2 + 22a
Step-by-step explanation:
x(a)+w(a) means to just add the expressions (a^2+2a+1) and (9a^2+20a-1) since that is what x(a) and w(a) equal and because of the + between them.
(a^2 + 2a + 1)
+ (9a^2 +20a - 1)
10a^2 +22a +0
Or just 10a^2 + 22a.
14.5%
Step-by-step explanation:
Use the number 100 as an example to find the single discount.
Take a 10% discount off of this:
100(0.9)
= 90
Take a 5% discount:
90(0.95)
= 85.5
So, after the successive discounts, $14.5 was discounted.
This means that the single discount is 14.5%.
So, the answer is 14.5%