My proposed solutions for exam 2

[woolworth]

i think the solns are right, except for that maximum almond one where i got 120 >.> in graphs & relns

[Namit]

Got a copy of the actual exam? Seems like you got some errors...

Nope, but do tell which things you think are errors.
These are confirmed by 2 people including my teacher.

Wasn't the last question in number patterns asking for what value gives 200000 in march?  I think you gave 3781,  i thought it may be 2000?

[davidle_10]

i think the solns are right, except for that maximum almond one where i got 120 >.> in graphs & relns

I got 125g..
You had to find inequation x+y >(greater or equal) 500
then rearrange to find y so y=500-x
Sub this into the equation 0.2x+0.04y=40
0.2x+0.04(500-x)=40
x=125g

[thatisanote]

Got a copy of the actual exam? Seems like you got some errors...

Nope, but do tell which things you think are errors.
These are confirmed by 2 people including my teacher.

Wasn't the last question in number patterns asking for what value gives 200000 in march?  I think you gave 3781,  i thought it may be 2000?

Sorry this one was confirmed by my teacher, I watched him do it.
Work out the value for t3 (march), then go 200000-t3.

[Namit]

Okayyy, damn

[some dude]

for the geo answer of 1.4m^2 , didnt it ask for the area of the octagon. so
.5*2*2*sin(45)=1.4 *8 gives you 11.something. did u forget to times the 8, or am i missing something here?

[woolworth]

i think the solns are right, except for that maximum almond one where i got 120 >.> in graphs & relns

I got 125g..
You had to find inequation x+y >(greater or equal) 500
then rearrange to find y so y=500-x
Sub this into the equation 0.2x+0.04y=40
0.2x+0.04(500-x)=40
x=125g

yeh i know i got it wrong, i did the same thing, but somehow got 120g

[thatisanote]

for the geo answer of 1.4m^2 , didnt it ask for the area of the octagon. so
.5*2*2*sin(45)=1.4 *8 gives you 11.something. did u forget to times the 8, or am i missing something here?

Nah just the triangle (OAB or something)
THen the next question you have to use PIr^2-area of octagon (which is 1.4*

[some dude]

for the geo answer of 1.4m^2 , didnt it ask for the area of the octagon. so
.5*2*2*sin(45)=1.4 *8 gives you 11.something. did u forget to times the 8, or am i missing something here?

Nah just the triangle (OAB or something)
THen the next question you have to use PIr^2-area of octagon (which is 1.4*

ahh so thats 2 silly mistakes already...:/