How come on the last problem (4) the answer is 5 and not -5?
This site is awesome! Cheers!
@ all of dreilizards kids <3
Your answer for the mean is wrong in part a. I'm pretty sure you don't need to make it negative. I think the mean should be 150.3
hola amigos, como están?
Bien, y tu?
Exelente amigo! Que util esta pagine web
Vaya tienes razón! Creo que no reprobare el examen
Amigos y Waldito
what if the rotation happens in the y-axis and is there any application to this formula?
Can I just please say something? Have you been sent by God on earth to save the lives of us IB students? Or, perhaps, make the life easier?
No, I am serious. I am as serious as can be. Are you an angel or something? Is there something I can do for you? like… I dont know, send you 50 packets of chocolate, or maggi or… whatever.
I dont even know how to say thank you or appreciate this website because I dont have words or the perfect terminology for this website.
It is beyond good, and perfect.
:) hehe… Thanks a lot!
could you please make an easier version of how to calculate sums in arithmetic as well as geometric progressions that consist of simple interest and compound interest questions? It would be really helpful! Btw this page is a life saver ..thanks!! ps: look forward to my request i need it ASAP. :)
I've had a few requests for that… Sorry just don't have the time. However!
There is a print option at the bottom of the page. You may be able to print to a pdf.
please please please, if you have chance, add any math hl videos! my class of '17 is the first class in the entire school's history to receive the IB diploma! they even warned us that the program will not be okay and we're the experimental class (the lab rats). by the way, my school and only 2-3 others in the entire city have this iB program. any help you're able to give us, I'll be more than grateful! thank you!
Great page it would be a great advantage if you published the notes on pdf to study, thanks
very nice article. Amazing post. i am completely agree with your post.
Question 6 - Part b. 72 is one standard deviation away, but 90 is not. 88 would be 1 standard deviation away.
Yes it should be 'right', not 'left'. I was just going to post that here.
Thanks m80, you saved me for paper 2.
Only thing I can recommend you change/input is to show the process of using the "exponents and logarithms" equation when finding the nth term in a finite geometric sequence. Wolfram was a little difficult to comprehend for that exact example.
Best page ever, you really saved my life and my ib math califications. Thank you!
In the section of graphing inverses graphically, you wrote "If we assume that the red function is the original and the blue is the inverse function, we can notice the the x-intercepts of the original function "become" y-intercepts of the inverse and vice versa." However that would only occur if the blue is the original because the x-intercept of the blue function is the y-intercept of the red function