SC mathematics Marathon (4 Viewers)

[Sy123]

i think that is the question and yeah it is for all values of x.
i think he wrote
"I have two lines:

y=ax
y=2x"
to trick you

Yeah, that is why I said this question is simpler than you think,
I have gotten a lot of these questions on my trials, and unfortunately I sometimes think far too ahead and overlook the obviousness
For example the section of MC, where it has Incorrect/Correct statements I got this question in my trial.

(x+y)^2=(x^2)+(y^2)+2

a. y=x (correct/incorrect)
b. x=1 y=-1
c. x=1 y=1
d. y=-x

Believe it or not, I got the question wrong, due to (a), I thinked about it too hard.
But yeah do that question

 

[dionb2014]

True true.the moral is, everyone, the questions in the SC do not require thought so don't think about them or you will get them wrong.

 

[RealiseNothing]

Yeah, that is why I said this question is simpler than you think,
I have gotten a lot of these questions on my trials, and unfortunately I sometimes think far too ahead and overlook the obviousness
For example the section of MC, where it has Incorrect/Correct statements I got this question in my trial.

(x+y)^2=(x^2)+(y^2)+2

a. y=x (correct/incorrect)
b. x=1 y=-1
c. x=1 y=1
d. y=-x

Believe it or not, I got the question wrong, due to (a), I thinked about it too hard.
But yeah do that question

You did the same trial as me lol.

 

[goodie10]

People that have done physics that i know, have generally loved it. They say its enjoyable. But on the scale of how hard it is 10 being the hardest, what would u rank?

 

[goodie10]

q.83 a) kite
b) P = 62 cm
Im not sure about the last two, but to get 25 cm you use Pythagoras.

 

[dionb2014]

lets just ask shit loads of questions tonight guys so we can be prepared for anything.
4 pizzas + delivery = $62
2 pizzas + delivery = $34
assuming all pizzas cost the same without delivery, what is the fixed delivery charge?

 

[RealiseNothing]

lets just ask shit loads of questions tonight guys so we can be prepared for anything.
4 pizzas + delivery = $62
2 pizzas + delivery = $34
assuming all pizzas cost the same without delivery, what is the fixed delivery charge?

2 pizzas = $28
a pizza costs $14

 

[RealiseNothing]

If 6x=y and y=2x+3, find y

 

[dionb2014]

lets just ask shit loads of questions tonight guys so we can be prepared for anything.
4 pizzas + delivery = $62
2 pizzas + delivery = $34
assuming all pizzas cost the same without delivery, what is the fixed delivery charge?

^

 

[queenbee13]

Hahaha ripped off a past paper?? i remember doing that
But anyways the answer is $6

Ok.... The entry ticket price to an entertainment park for a child is $16.50
The price for an adult ticket if 50% more than the price for a child.

What is the total price for two adults and a child to enter the park?? (i think SC gives more of these types of questions)

Edit: ok i was beaten to the answer....

 

[Sy123]

If 6x=y and y=2x+3, find y

6x=y [1]
y=2x+3 [2]

Sub [1] into [2]
6x=2x+3
4x=3

:. x=3/4

What is the area of a quadrant, of a circle with 6 cm diameter
Leave answer in terms of pi

 

[dionb2014]

^

 

[dionb2014]

(pi*3^2)/4
(9pi)/4 or 2.25pi

 

[RealiseNothing]

Find y guys, not x

 

[dionb2014]

Isn't tipping off past papers the best way to make sure we know content relative to what we will be doing.
$16.5/2 = 8.25
8.25+16.5 = 24.75
24.75*2 + 16.5 = $66

 

[Sy123]

Find y guys, not x

Oops hope it doesnt happen in the actual SC

Sub x=3/4 into [1]

y=6*3/4
y=18/4 or 4 1/2

 

[dionb2014]

Sinx = 4/3
the hypotenuse is 32cm how long is the opposite side.

 

[Sy123]

Sinx = 4/3
the hypotenuse is 32cm how long is the opposite side.

FIRST ATTEMPT AT THIS QUESTION WAS WRONG
Im so stupid, this question is incredibly simple

let a=opposite

a/32=4/3

3a=128
a=128/3

 

[dionb2014]

^

 

[knxd]

..