Standard Math Q+A Thread

[RuiAce]

That was the answer they gave but when I put it in my calculator it comes up with 28602.21092

Why is that?

Did you remember to square root?

[morning_sunshine]

Did you remember to square root?

No I did not do that OMG I am so sillyyyy!

THANK YOU SO SO SO SO SO SO SO MUCH I HONESTLY DON'T KNOW WHAT I WOULD DO WITHOUT YOUR HELP!!!!!! 

[morning_sunshine]

Hey I have a question from last year's HSC paper

So I keep getting my answer either in the 80s range (so D) or in the 50s range which isn't an option.

The answers say C which if I round my answer up and give a guess is right but I want to know how to get C without having to base it on luck ya know

Thanks in advance

[EEEEEEP]

Hey I have a question from last year's HSC paper

So I keep getting my answer either in the 80s range (so D) or in the 50s range which isn't an option.

The answers say C which if I round my answer up and give a guess is right but I want to know how to get C without having to base it on luck ya know

Thanks in advance

P (smoker or male) = P (smoker ) + P (male) - P (smoker AND MALE)

which equals to....

264/465 + 156/465 - 88/465 = .6845

[morning_sunshine]

P (smoker or male) = P (smoker ) + P (male) - P (smoker AND MALE)

which equals to....

264/465 + 156/465 - 88/465 = .6845

THANK YOU SO MUCH!!!!!

[morning_sunshine]

So practice makes perfect, and its questions like these that get me so worked up.

So i've tried so many different formulas, you name it I probably tried it and didnt get the right answer....
How do I find the bearing of C from B?

[RuiAce]

So practice makes perfect, and its questions like these that get me so worked up.

So i've tried so many different formulas, you name it I probably tried it and didnt get the right answer....
How do I find the bearing of C from B?

[morning_sunshine]

(Image removed from quote.)

Could you explain to me how you solved the formula please! I don't mean to be a pain 

Thanks in advance

[Natasha.97]

Could you explain to me how you solved the formula please! I don't mean to be a pain 

Thanks in advance

Hi!

[Juliesokha]

Can someone please help me with this question?

[Natasha.97]

Can someone please help me with this question?

Hi!

When taking the cube root of 857.375, we get 9.5 as the answer. If it was less than 9.75, the cube length would get rounded down to 9.5, but if it was 9.76 or larger, it would be rounded up to 10. Therefore, the largest possible volume would be 9.75³ which is 926.86 (A)

Hope this helps

[morning_sunshine]

So another question

What do you do in this question ...
Like how do you go about it

[Natasha.97]

So another question

What do you do in this question ...
Like how do you go about it

Hi!

Jamon's already addressed this question here :)

[emilybrooks99]

If we use the nPr and nCr calculator functions for probability in the exam what working out do we show? And will we lose any marks?

[morning_sunshine]

Hi!

Jamon's already addressed this question here :)

THANK YOU SO MUCH HUN!!