- I haven't sat for a maths exam for like over a decade.
I'm just like feeling all the stress again.
- Oh no.
(upbeat music)
Today We're going to be trying
year 12 math calculator ready.
- This is very so embarrassing.
- I was pretty good at math at the time,
but that level of maths is so useless in everyday life.
- My sister did it, my father is an ex math head teacher.
I kind of got bored.
- I believe I came somewhere like second worst in the class.
- Sohan as well has got like Brown background, like me.
which means she probably did math or was like forced to.
- Sohan is definitely the strongest contender.
- I feel like she's got a very logical data driven brain.
- Yeah, no, no.
I don't think I'm going to do well.
- What is the time difference
between 8:35 AM and 2:10 PM?
- A, five hours and 25 minutes,
B, five hours and 35 minutes.
- C, six hours in 25 minutes
D, six hours and 35 minutes.
I'm already freaking out.
I should not have had coffee this morning.
- Okay, this is fun, this is fun, guys.
- 11, 12,
- 11:35, 12:35.
- Okay, wait.
- So that's 35, So that's five.
I'm so nervous, okay calm down.
- Five hours 35 minutes, B.
- B
- Lock in B.
- B.
- If I get this wrong, okay, great.
Good, good, I can tell the time.
- Whoa.
- Yes.
- Okay.
- Which expression can be used to convert
a speed of three meters per minute
to a speed in centimeters per second?
- Three times a hundred divided by 60.
Three times, 100 times 60.
Three divided by a hundred divided by 60.
Three divided by a hundred times 60.
- Okay.
- This is not a life skill people, no it's not.
- First of all, how many centimeters
are there in a meter, 100.
- So three meters is 300 centimeters.
So immediately it's three times a hundred.
- C, wait, wait, wait, wait.
That's not my final answer, let me think.
- 10 degrees per second, feels like a fraction.
- Which means dividing the minute by 60.
Okay, I'm gonna go with A.
- I feel like it's A.
- Let's do A, Where did I get that from?
- I'm gonna look at C.
- Yes.
- Okay, good.
Okay, good. Good, good, good, good.
- Hey, wait, wait, wait, what was it?
Oh my God.
- The math genes,
I can feel them in my brain working, waking up.
- Alright, so the lesson here is breathe.
- Heart rate is measured in beats per minute.
Maximum heart rate, MHR
is calculated using the following formula.
MHR equals 220 minus age.
Target heart rates are calculated as a percentage of MHR.
- Felicity's age is 28.
- Her trainer calculates and her target heart rate range
is 60 to 80% of her MHR.
- Oh, that's good heart rate
'cause mine is elevated right now.
- Which of the following
lies within this target heart rate range?
A, 100 beats per minute,
B, 140 beats per minute,
C, 180 beats per minute
or D, 220 beats per minute.
So let's find out what her actual MHR is.
- 192.
- 60 over a hundred times 192 over one.
- Which is equal to 115, which is not any of the answers.
So that's great.
- One, one, five to one, five three.
B, B, lock it in Eddie.
- And B is 140 hours doing matches.
Let's go with B
- I'm going with B.
- Time to give it a really good guess.
Let's just go with C.
- Yes.
- Why did I not say B?
Well, actually not to be honest,
I was leaning towards all of them
'cause I have no idea what I'm doing.
- What is the value of PI to the 10
to two significant figures.
- Is that a pie symbol?
- My calculator doesn't have pie.
- Oh, wait, no, wait.
Oh, I found how to get a Pi symbol.
Oh, Oh, it's this one.
Oh my God. Oh,
Pi times Pi,
- 10 times 10 times 10.
- Times Pi, times Pi
- Because it's 10 to the power of five
and you've only done it twice.
I think, yeah, I think it's five.
I'm not sure, Or maybe it's A, maybe four.
Maybe it's not, oh no.
- But it's to two significant figures,
which means you rounded up guys.
No, but Oh my God.
- Should I just guess it?
This is ridiculous.
I'm going B.
- I'm gonna go with C.
- I'm gonna go for A actually.
- I'm gonna lock in C.
- Mate, C.
- Oh no.
- B, are you serious?
- A parabola, we remember those,
has a Vertex two, one, and focus five, one.
- What is the equation of this parabola?
- A Parabola fuckin graph.
Can I phone a friend?(sighs)
(Inhales deeply)
- I remember this, what is the equation?
I don't know.
- Vertex like vertical, which is like,
is that the X,
Is that X or is that Y?
- These formulas mean nothing to me?
Like I actually don't even know what I'm meant to look for.
So let's just go D.
- Let's go with B.
- Let's do C.
- We're going to go with A.
You know, it felt like a C.
- Damn it.
- Oh My God, I got It.
(Laughs)
Trust yourself Kids.
- A game is played by tossing an ordinary six sided die
an ordinary coin at the same time.
The game is won if the uppermost face
of the die shows an even number
or the uppermost of the coin is a tail.
- What the probability of winning this game?
- The only way I'm going to get this right,
is if I actually brought out all the options.
I'm doing this one, remember this one?
Just circled, like all of the ones
that it could possibly be.
And I'm just gonna count them.
- The percentage is greater.
So like three out of four, rather than one out of four,
which is a lesser probability.
- 10, 11, 12, 12, which is three over four.
- So the answer is C.
- C, Lock it in.
- Yes, 'cause it'd be three over six.
Oh no, wait.
A, I'm gonna lock in A.
- Let's just go with B.
- Yes, oh my God, oh my God.
- Fuck.
- I am never letting my mom see this video.
- Dad if you're watching, you can turn this off now.
- What is the domain of the function, F
- X equals LN.
- What is I N, L N one N
- not L N, I think it's something else.
- Bracket four minus X close bracket.
- A, X is less than four.
B, X is less than with a line under it four(laughing)
C, X is more than four.
D, X is more than four with a line under it.
- So like I have to say this function equation once again,
very familiar, definitely use this.
- So F equals N times 0.2.
- So now I just have to work out whether it's less than,
or it's more than.
- Based on my calculations so far,
I've got F equals N times 0.2.
0.2 is a small number.
It must be less than or equal to four.
- I'm just going with B.
- B.
- Really like to lock at D today.
Let's go with D, cool, great.
(groaning)
- A.
- I tried, I really tried, a look at my trying.
- A particle starts from rest.
- Two meters to the right of the origin.
- And moves along the x-axis
- In a simple harmonic motion
with a period of two seconds. Bitch What?
- Which equation could represent the motion of the particle?
- I think this is a stupid question.
Which equation could represent?
Like either the equation does represent
or doesn't, idiotic
- Oh my God, Trigonometry.
I've never used this in my life.
- Love how it mentions particles, harmonic motion.
Like kind of sounds like music.
- In a harmonic motion.
- Yes, Sounds like a fun question,
If I knew how to solve it,
- It's like, why do you have to learn this?
I don't know, there's so many other things you could learn
that would be so much more useful than this bullshit.
- C or D is looking quite good.
'Cause I've got two sets of two's there, I like that.
I do like a pie symbol because it does look a bit fancy.
I like sin as well.
Maybe we go for C then.
- I'm going with D.
- I'm gonna go with D.
- I think it's D.
Ah, far out.
- There's some sort of conspiracy going on here.
- Find the acute angle within the lines.
- X minus two Y.
- Two Y plus one equals zero, Y equals three X, What?
- What?
- What's the acute angle?
- I just realized
this one's not multiple choice, oh no.
- It's probably gonna be so many people
in the common feeling, who's selling gene?
- Let's just write some stuff down.
- The acute angle.
How do I get to angles from here?
- Acute.
- You're going to have to give me a pause.
I'm not gonna answer this question.
- Leave it blank, that's my answer.
- I like the number 71, 71 degrees.
- I don't know, 23 degrees, I guessed it.
- Oh my God
- What is this?
- What the hell did I do?
- Oh my God.
- I don't think I got any of that.
I just had this giant working out of algebra.
(upbeat music)
(crowd cheering)
- What, how did I pull this off.
I mean with the difference of one
between second and third.
So it was really anyone game, but I'm so glad I won
(upbeat music)