How many integers from 1 to 40, inclusive, are multiples of 4 or 5?

4, 8, 12, 16, 20, 24, 28, 32, 36, 40  = 10 numbers that are multiple of 4

5, 10, 15, 20, 25, 30, 35, 40 = 8 numbers that are multiple of 5

10 + 8 = 18 total numbers are multiple of 4 or 5

it is x equals 3   plese mark me really need it

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