I am not sure but I think it represent the middle coordinate
Since 25% is smack in the middle between 20% and 30%, it will take equal volumes of ech to make a 25% solution.
Since 4 gallons of 30% solution was used, so 4 gallons of 20% solution will be needed.
Answer:
Step-by-step explanation:
<u>Current office area:</u>
<u>Temporary office dimensions:</u>
<u>Temporary office area:</u>
- (x + 3)(x - 5) = x² - 2x - 15
<u>The difference is:</u>
- x² - (x²- 2x - 15) =
- x² - x² + 2x + 15 =
- 2x + 15
Correct choice is A
1 is : d>-9
2 is: k ≥ -18
3 is: g>-1
4 is: n<-40
5 is: w ≤3
That should be correct.
Answer:
x^2 + (y – 3)^2 = 36
Step-by-step explanation:
The standard equation of a circle with center at (h, k) and radius r is
(x - h)^2 + (y - k)^2 = r^2.
If the center lies on the y-axis, then h = 0: (x - 0)^2 + (y - k)^2 = r^2
If the circle diameter is 12, then the circle radius is 6, and so r^2 = 36
So, among the given equations, your
x^2 + (y – 3)^2 = 36 is correct (but only if you use " ^ " for exponentiation).