IGCSE Mathematics June 2019 - 4MA1/2H

IGCSE Mathematics June 2019 - 4MA1/2H

Contents:
00:00 - Intro
00:24 - Question 1
02:21 - Question 2
03:15 - Question 3
06:16 - Question 4
07:16 - Question 5
09:48 - Question 6
11:09 - Question 7
13:14 - Question 8
14:02 - Question 9
15:24 - Question 10
16:33 - Question 11
18:49 - Question 12
21:21 - Question 13
24:35 - Question 14
25:31 - Question 15
26:51 - Question 16
28:26 - Question 17
29:56 - Question 18
31:55 - Question 19
35:28 - Question 20
37:35 - Question 21
39:35 - Question 22
40:38 - Question 23
44:04 - Question 24

[danielxoxo.]

Commenting this for others just in case, if you have trouble solving question number 1 using the formula, you can try using the following method:

Add the first and last from the h cm, divided by 2 and multiply the frequency, for example; 90<h<100. You can go for it like 90+ 100/2 X 8 and then + 100 + 110/ 2 X 12 and so on. After you've calculated the total mean frequency then just simply divide with the amount provided.
For this case, the total mean frequency / 48, which will give you the answer of 112.5 cm in the end.

[lichtatem]

I can't believe this channel exists- thank you so much for this! New subsrciber :)

[soulaymanezerrouki]

The paper itself was hard but you made it look easy 💯💯

[axis]

been binge watching your videos, youre actually great!! tysm

[goodninja]

For the final question I want to know why it is that if “x” must be greater than or = to 5 then how come the inverse of it for “y” is also greater than or equal to 5 and not less than seen as it is the inverse

[abcdefghijklmnopqrstuvwxyz]

in question 18, isnt the rule that if the number is above 0 its a minimum? so 2.4 should be a minimum. could u explain this pls

[Cranberry_haley]

In question 3, do we keep the plotting lines of the median and interquartile range on the graph?

[Maria-zrsd]

isn't question 18 48-12x where did you get the extra x from?

[munasamatar]

Question 21 when you find the length of ac can you do sine rule to find angle of af as well

[randommeamsguy]

sir in the 20th question line 5 why did u divide by 3 if anyone can clear my doubt pls tell me i have OL exam in another 15 days @StateOfMath

[hibye_]

how did you get your final answer in question 11c? what was the cost? you multiplied what with 1.058?

[shushudaniel-pmls]

I dont understamd nuber 11 c
The last part where u got 1.058 and wrote the answere as 58%
Please explain am really confused

[sabjansaima]

45:09 2(y-5)^2-50+9, in this where did u get -50 from

[Misty]

I don't understand how to factorise the numerator on question 22

[gasserosama]

18:17 why you wrote 0.92?! I dont underatand it

[alihassandaya]

Number 9 is wrong your supposed to multiply with three

[rawanrabiea]

I dont understand question 5 how come 40%of 60 =48 .shouldn't it be 24

[crashy_dsk]

Can you make a dedicated video for completing the square method and vectors ? Plz there 2 very hard topics and my exam is in 1 week

[abualhawa_]

Ur a lifesaver!! But for question 22, the first step how do u know the 2 brackets for the denominator I’ve been finding it difficult

[roxers]

i really dont get question 24 and i have my math mock tommorow pls help if u can