First step: x= ± √ 121
Second step and correct answer: x= ± 11
Because: x^2 = x= ± √
Box one ratios
Box two 35:2= 70:4
Answer:
6x^2(5x^4 +3)
Step-by-step explanation:
The greatest common factor of 18 = 3·6 and 30 = 5·6 is 6.
The greatest common factor of x^2 and x^6 is x^2.
Factoring 6x^2 from both terms, we get ...
... 18x^2 +30x^6 = 6x^2(3 +5x^4)
_____
<em>Comment on the question</em>
Since this answer is not among the answer choices, I suggest you ask your teacher to demonstrate how this problem is worked.
It appears as though the answers go with the problem 18x^9 +30x^6. Maybe there's a typo somewhere. For that problem, the best choice is the 2nd answer.
The slope of the line is 50. You can try looking at the equation, which is
y=50x+500
500 is your y-intercept, and is where the cost starts.
50 is your slope, since the cost goes up by $50 every time.
x is how many hours, which determines how many $50s there are.
I hope this helps. All in all, the slope is 50.
The right, because your going forward not backwards
