Answer:
6
Step-by-step explanation:
61 1/2 divided by 10 1/2 =6
Answer:
y = -2(x -2)^2 + 11
Step-by-step explanation:
It works well to factor the leading coefficient from the first two terms.
... y = -2(x^2 -4x) +3
Now we want to add the square of half the x-coefficient inside parentheses, and subtract the equivalent quantity outside parentheses.
... y = -2(x^2 -4x +4) +3 - (-2·4)
... y = -2(x -2)^2 +11 . . . . . . . . simplify
_____
The form given in the problem statement is called "vertex form," where the vertex of the parabola is (h, k). A graph shows us the vertex is (2, 11), so we can write the function immediately as ...
... y = -2(x -2)^2 +11
1. 50% of 60mins is 30mins
2. 10% of 60 mins is 6mins
3.75% of 60 mins is 45mins
Answer:
Step-by-step explanation:
<u>Solving in steps:</u>
- –3(6 – 2x) ≥ 4x + 12
- -18 + 6x ≥ 4x + 12
- 6x - 4x ≥ 12 + 18
- 2x ≥ 30
- x ≥ 15
- x∈ [15, +∞)