The correct answer is 6 - sqrt(6)
We know this because when we solve with the quadratic equation, the numbers come out with a constant plus and minus the discriminant under a square root symbol. You can see that below in the quadratic equation.
So seeing that one answer is 6 + sqrt(6), we can assume 6 is the discriminat and 6 is the constant. Thus giving us the new answer as well.
Answer:
...
Step-by-step explanation:
Answer:
X=6
Step-by-step explanation:
To find the answer you could do 21 - 15 and that gets you an answer of 6 and thats how to get your answer.
Answer:
1, 2, 4, 5, 8, 10, 20, 40
Step-by-step explanation:
These number can all divide 40
Answer:
the price for one pretzel was $1.75
Step-by-step explanation:
d for drinks
p for pretzel
3d + 3p = 9
3d = 9 -3p
d = 3 - p
replace d = 3 - 9 into 4d + 2p = 8.5
4d + 2p = 8.5
4(3 - p) + 2p = 8.5
12 - 4p + 2p = 8.5
-2p = 8.5 - 12
-2p = -3.5
p = 1.75