does anyone know what the question was for (I think) it was question 8. People have said the answer was 60? It's the question that was above the letter one.
does anyone know what the question was for (I think) it was question 8. People have said the answer was 60? It's the question that was above the letter one.
It was the question about how many L's would he expect to get in 300 spins (probability question)
1) volume of a prism: 750cm3 Q??) probability: 0.95, 0.05, 0.7, 0.3 Q2) questionnaire, question doesn't specify time, ambiguous and also the options aren't specific enough "often" "sometimes" hard to interpret Q??) 36%- rent increase Q??) circle theorem: angle 69 degrees Q??) not enough tiles, 7.5 litres, needs 10 Q??) inverse proportion: 100, 25, 4 Q??) circle in a square- 100-25 pie Q??)11 female teachers Q??) box plot distribution: comment on mean, range, interquartile range with numerical comparisons Q??) 90 teachers Q??) estimate L, in sample of 300, round 80 to 100, 16 to 20, so estimate of 60 Q??) powers/indices, add the powers when multiplying two numbers, take away powers when dividing, and if in a bracket, multiply those powers Q??) vectors, a) a+b, b) 3b-a, c) 3/4 a + 3/4b (can't remember whether + or -) Q??) factorise n2 -7n = n(7-n)
Hi guys, for the last question about the triangles, I think i forgot to half the area for one of the triangles. Foolish me, so now i got the same answer as everyone else except at the bottom I have 6 instead of 12. Can I still get around 2 marks for that?
I got the same- I think we might get method marks but that's it😭
Drew a line from one of the corners to the radius to create an isosceles triangle including the origin and the angle of 48. Therefore the other angle was 48 (isosceles triangle), so the angle at the origin was 84 (180-96).
This meant that the angle at the other point (hard to explain without a diagram) was 42 because the angle at the circumference is half that at the origin.
As this was a big large isosceles triangle (already marked), the other two angles were 180-42/2 = 69.
Then alternate segment theorem meant the angle that needed to be found = 69.