Answer:
4x+2x=90
6x=90
x=15
Step-by-step explanation:
The answer is -5x,,,,,,,,,
- Cost of unbleached flour=14(5)=70
Now
Let required bleached flour be x kg
Then
To factor out the expression we look for number which is divisible by every term in our case it is 3n^2:
3n^4+21n^3+27n^2
we first begin by factoring out 3n^2, this will give us;
3n^2(n^2+7n+9)
hence, since we cannot factorize the quadratic expression the answer remains to be:
3n^2(n^2+7n+9)
<h3>
Answer: Choice C</h3>
Explanation:
As the person spends more time raking, the number of leaves will go down. Therefore, we have a negative correlation. Such correlations occur when one variable goes up while the other goes down (and vice versa).
The reason why it's considered negative correlation is because the regression line has a negative slope.
This is why choice C is the answer. This assumes that no extra leaves fall on the ground, and we assume that we don't have nearby leaves blow into the yard.
In contrast, something like choice A has both variables go up together. As the temperature rises, so does the ice cream sales. The same goes for choice B. We consider these cases to have positive correlation. Choice D doesn't appear to have any correlation at all. The person's height doesn't have any connection to the number of pets they may have.