1st Question:
1/6, 2/6, 3/6 = 1/2, 4/6, 5/6, 6/6.
Halfway between 1/2 and 5/6 is 4/6 = 2/3.
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2nd Question: Could've been worked out on a calculator.
-5/6, -7/9, -3/5, -3/7
9514 1404 393
Answer:
see attached
Step-by-step explanation:
The equation can be rewritten to vertex form, so you can tell the vertex is at (2, -5). The leading coefficient of 2 means the points will be twice as far apart vertically than they would be if the leading coefficient were 1. A couple of points are shown in the attached.
y = 2(x^2 -4x) +3
y = 2(x^2 -4x +4) +3 -8 . . . . . . complete the square
y = 2(x -2)^2 -5 . . . . . . . . . . . . finish putting in vertex form
1/2 x 5/8 = .3125
If you plug it into the calculator.
Answer:
£36 : £96
Step-by-step explanation:
3 + 8 = 11
132 ÷ 11 = 12
⇒ 12 x 3 : 12 x 8
⇒ £36 : £96