Question 5
in a class of 40 children who joined a pre-school, 55% could speak english, while 60%
could speak mandarin.
(a) given that 8 children could speak neither english nor mandarin, how many could
speak both english and mandarin?
(b) how many could speak english only?
draw a venn diagram to represent the sets.

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²