<span>2x^2 - 2x - 1 = 0 a = 2, b = -2, c = -1 b^2 - 4ac = (-2)^2 - 4(2)(-1) = 4 + 8 = 12
so the answer is 12
</span>
Answer:
33%
Step-by-step explanation:
Assuming the weight of the mixture to be 100g**, then the weight of ryegrass in the mixture would be 30g.
Also, assume the weight mixture X used in the mixture is Xg, then the weight of mixture Y used in the mixture would be (100-X)g.
So we can now equate the parts of the ryegrass in the mixture as:
0.4X + 0.25(100-X) = 30
<=> 0.4X + 25 - 0.25X = 30
<=> 0.15X = 5
<=> X = 5/0.15 = 500/15 = 100/3
So the weight of mixture X as a percentage of the weight of the mixture
= (weight of X/weight of mixture) * 100%
= (100/3)/100 * 100%
= 33%
Answer: f=26
Step-by-step explanation: x^2+6x^2+12x+7/x= 26
Answer:
The answer is G.
Step-by-step explanation:
When comparing G with the other 3 options, ONLY G hasn't ran more than 6 miles; the rest all options show that he ran more miles in few minutes.
Yes it can.
Divide 36 by 10.
Move the decimal one place to the left. That gives you 3.6
36/10 = 3.6
Hope that helps! :)
