The ratio of boys to girls in a school is 5:6
There are 240 boys in the school
How many students attend the school

Step-by-step explanation:

Ratio = 5:6

No. of boys = 5x

No. of girls = 6x

5x = 240

x = 240/5

x = 48

No. of girls = 6x = 6* 48 = 288

Total sutdents = 240 + 288 = 528

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct