Y=x squared
Every x squared equals y
Answer:
从 1 到 20 有 8 个素数。它们列在下面:2、3、5、7、11、13、17 和 19。
If the equation is x/(x^2-4) then I will solve it here
it's rational
therefor we can't have any impossibles like dividing by zero and square root of -1 an d stuff
f(x)=x/(x^2-4)
we know that the denomenator cannot be equal to zero so the numbers you cannot user are the numbers that will make the bottom number zero
so x^2-4=0
x^2=4
x=-2 or 2
so x cannot be -2 or 2, but it can be all other numbers so
domain=all numbers except -2 and 2
Answer:
9 green peppers and 3 red peppers
Step-by-step explanation:
Lupe's chili recipe makes 12 servings and uses green peppers = 12
Therefore, for 1 serving he uses =
= 1 green pepper
He uses red peppers for 12 servings = 4
for 1 serving he uses =
red pepper
∴ for 9 servings Lupe needs green pepper = 1 × 9 = 9 green peppers
and for 9 servings Lupe needs red pepper =
× 9
= 
= 3 red peppers
Lupe needs 9 green peppers and 3 red peppers for 9 servings