In a survey of students, it was found that 50% of them like English, 60% like Maths and 40% like Science. If 20% like Maths and English, 15% like English and Science, 25% like Maths
and Science and 5% like all three subjects,
(1) What percentage of students like only two subjects ?
What percentage of students don't like any subject ?

step-by-step explanation:

their are no angles. sorry cant .

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

1. perpendicular

2. parallel

3. perpendicular

2: 10

step-by-step explanation: