Answer: THIRD OPTION.
Step-by-step explanation:
We need to remember that we can create a perfect square trinomial by squaring a binomial:

Then we need need to pick the coefficient of the x term of the given expression, divide it by 2 and square it:

Therefore, the number that should be added to the given expression in order to create a perfect square trinomial is:
According to the fundemintal counting princable the answer is 18.
Answer:
x=4
Step-by-step explanation:
distributive property goes first.
you get 6x-9=15
add 9 on both sides so 9 cancells out on the left side.
you get 6x=24
divide by 6 and you get x=4
The answer is b
The perimeter of a rectangle is 2(l + w) so in this case, it is 2(15 + 9) and that is equal to 48. But so at c and d. So u need to multiply the width by 2 (9*2=18) and then you’ll see that 18-3=15. And therefore, the length is -5 and the width is 9
14 * 25* 4 = 1400 is this what your looking for?