Answer:
The first one
Step-by-step explanation:
Because you mulitply 4 by 5 to get 20
Answer:
3x + 4y = -36
y = 2x - 9
3x + 4(2x - 9) = -36
3x + 8x - 36 = -36
11x - 36 = -36
11x = 0
x = 0
y = 2(0) - 9
y= 0-9
y = -9
(0, -9) is the answer
Step-by-step explanation:
It looks like you are missing one value in your table. You have 6 sides of the die, however only 5 outcomes. Without this, we can't get a final answer. However, I can tell you how to solve the problem.
For the experimental probability, you need to add up all the 2's and 4's. Then, divide that number by the total amount of numbers. <span />
Answer:
Step-by-step explanation:
Solving for x means you have to factor. First factor out the GCF of 2 to get:
and now we'll factor using the regular old method of ac and then factoring by grouping. In our polynomial, a = 3, b = 1, c = -6. Therefore, a times c is 3 * -6 which is -18. We need some combinations of the factors of 18 that will add to give us 1, the b term in the middle. The factors of 18 are:
1, 18
2, 9
3, 6 and that's it. Hm...it seems that won't work, so let's throw this into the quadratic formula, going back to the original and a = 6, b = 2 and c = -12:
and
and
and
and
which finally simplifies to
No wonder that didn't factor using the traditional method of factoring! We could have found that out by finding first the value of the discriminant, but oh well!
You would divide.
Think of it as a 'real' situation. You are holding a piece of wire and you cut it into 3 pieces so you have 'divided' it into 3 pieces.
62.4 divided by 3 = ??
The answer is 20.8 per piece
To check your answer you can take 20.8 and multiply it by 3.
