Step-by-step explanation:
hi I'm in K12 too and this looks like a tga
write a number and then put a point after it and then add more numbers after
With 2 die, there are 2 ways to roll a sum of 3......1 and 2, 2 and 1
with 2 die, there are 5 ways to roll a sum of 8...2 and 6, 6 and 2, 3 and 5, 5 and 3, 4 and 4.
total of possible outcomes = (6 * 6) = 36
the probability of this happening is : 7/36
Answer:
D) 3x^2 - 12
Step-by-step explanation:
Using PEMDAS;
There is no need to evaluate the part of the equation (x^2 - 8) because is no need to, as it is already in its simplest form.
We must evaluate the part of the equation continuing with, "- (-2x^2+4)," as it is not in its simplest form.
Evaluating "- (-2x^2+4)":
Step 1: Distributing the negative
Once distributing the negative symbol amongst the values within the parenthesis according to PEMDAS, we get "2x^2 - 4" as the product.
Step 2: Consider the rest of the equation to evaluate
Since the part of the equation is still in play here as it is a part of the original equation to be solved, we must evaluate it as a whole to get the final answer.
Thus,
x^2 -8 + 2x^2 - 4 = ___
*we can remove the parenthesis as it has no purpose, since it makes no difference.
Evaluating for the answer, we get,
x^2+2x^2 + (-8 - 4) = 3x^2 - 12
Hence, the answer is D) 3x^2 - 12.
