3x^2 + 33x + 54 =
3(x^2 + 11x + 18) =
3(x + 2)(x + 9) <==
Answer:
- y = 1.8x +53.7
- 73.5 in 2005
Step-by-step explanation:
The 2-point form of the equation of a line is useful here. It tells you that for the points (x1, y1) and (x2, y2) the line can be written as ...
y = (y2 -y1)/(x2 -x1)(x -x1) + y1
For your given points, this is ...
y = (60.9 -57.3)/(4 -2)(x -2) +57.3
y = 1.8(x -2) +57.3
y = 1.8x +53.7 . . . . . simplify
__
For x = 11 (in 2005), the predicted value is ...
y = 1.8·11 +53.7
y = 73.5
Hiya there!
If the recipe provided says that we need two cups for three gallons of punch, then you need 2/3 of a cup for one gallon.
I know this because if you add 2/3+2/3+2/3 (or multiply 2/3×3), you get the whole integer 3.
If you found this especially helpful, I'd appreciate if you'd vote me Brainliest for your answer, if other people did not provide a helpful answer (but, I'm sure they did!). I want to be able to assist more users one-on-one! :)
Step-by-step explanation:
i don't know that one sorry
Answer:
One pound costs 1.26, two costs 1.47, three costs 1.68, and four costs 1.89. So we calculate how much it increases in each pound.
1.26 + 21 = 1.47
1.47 + 21 = 1.68
1.68 + 21 = 1.89
1.89 + 21 = 2.10
2.10 + 21 = 2.31
2.31 + 21 = 2.52
2.52 + 21 = 2.73
8 pounds cost: 2.73
So I pay $ 2.73 for 8 pounds.