Answer:
x2 + 7x + x2 + 7x + 9 = 3
20 minutes !!!! Hope this helps
5.2 x 10^-2 is your answer. I hope this helps love! :)
Total possible outcome = 36
Outcome with sums is 5 = 4
{1, 4} (2, 3} {3, 2} {4, 1}
P(getting sum = 5) = 4/36 = 1/9
Answer: 1/9
Answer:
You don't really need to do it, but it helps you keep things more organized and easier to follow. Imagine if you're doing some multi-variable equation,
2a + 5b + 4d + 3c + b + a + 2d
that looks like a mess, it'll be easier to look at if you put all the similar variables next to each others like this:
a + 2a + b + 5b + 3c + 2d + 4d
(a + 2a) + (b + 5b) + 3c + (2d + 4d)
now you can add them up much easier.