Sumaya is using two different
different Strings of Christmas
lights to
decorate her house
one String flashes
every 10 Seconds.
The other String flashes every 15
Seconds. when sumaya
turns on the lights they flash at the same. work out how long it will be before they flash again at the same time. use the lowest common multiple to work out ur answer ​

step-by-step explanation:

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

3 qrs + 3/2 xy hope this : /

step-by-step explanation: