Answer:
-1/18
Step-by-step explanation:
Let's multiply left and right by 3n:
2 = -12 * 3n =>
-36n = 2
now divide by -36:
n = 2/-36 = -1/18
Answer:
37.5
Step-by-step explanation:
5*15=75 then 75/2=37.5
Answer: Second option is correct.
Step-by-step explanation:
A company wants to try out two new toothpaste brands (brand A and brand B) on customers who use the company's existing toothpaste brand.
So, the best method for this study is an experiment.
As the company will try its two new brands who are already using their existing toothpaste brand.
They will get to know their like and dislike about their two new toothpaste brands.
Hence, Second option is correct.
Since we need to solve for r we have to leave that variable alone in one side of the equation. We notice that at is adding in the right side, then it goes to the left side substracting, that is:
Therefore:
in the last part we only switch the sides of the equation.
<span>(-4, 6)
The center-radius form of a circle is the equation
(x - h)^2 + (y - k)^2 = r^2
where
(h,k) = center of circle
r = radius of circle.
Since the equation that was given is (x + 4)^2 + (y - 6)^2 = 25. then
(x - h) = (x + 4)
-h = 4
h = -4
(y - k) = (y - 6)
- k = - 6
k = 6
So the center is (h,k) = (-4,6)</span>
