Answer:
choice C. Perfect square trinomial is correct.
Step-by-step explanation:
We need to find the pattern which is represented by the polynomial
.
To find that pattern, we need to factor ![4x^2+12x+9](https://tex.z-dn.net/?f=4x%5E2%2B12x%2B9)
![4x^2+12x+9](https://tex.z-dn.net/?f=4x%5E2%2B12x%2B9)
![=4x^2+6x+6x+9](https://tex.z-dn.net/?f=%3D4x%5E2%2B6x%2B6x%2B9)
![=2x(2x+3)+3(2x+3)](https://tex.z-dn.net/?f=%3D2x%282x%2B3%29%2B3%282x%2B3%29)
![=(2x+3)(2x+3)](https://tex.z-dn.net/?f=%3D%282x%2B3%29%282x%2B3%29)
![=(2x+3)^2](https://tex.z-dn.net/?f=%3D%282x%2B3%29%5E2)
which is a perfect square.
Hence choice C. Perfect square trinomial is correct.
Answer:what grade is this for?
Step-by-step explanation:
?
Answer:
30 feet
Step-by-step explanation:
A ratio of 4:3 means that if one part can be represented by x, the original height is equal to 4 * x and the mural height is equal to 3 * x. This is because the ratio of original : mural is 4 : 3, so if one part = x, we have 4 * x : 3 * x. Therefore,
original mast height = 40 feet
4 * x = original mast height = 40 feet
divide both sides by 4 to get x
x = 10 feet
3 * x = mural mast height = 3 * 10 feet = 30 feet
Answer:
3.375 pounds.
Step-by-step explanation:
Total number of pounds of pecans =
2 1/2 pounds of pecans + 4 3/8 pounds + 3.25 pounds
= (6.875 + 3.25) pounds
= 10.125 pounds.
The total number of person = 3 person.
Therefore, the number of pounds each person would shell =
10.125 pounds/3
= 3.375 pounds