Answer:
The answer is B.
Step-by-step explanation:
You have to use area of trapezoid formula, A = 1/2×(a+b)×h where a, b are the side lengths and h is height :
![area = \frac{1}{2} \times (a + b) \times h](https://tex.z-dn.net/?f=area%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%5Ctimes%20%28a%20%2B%20b%29%20%5Ctimes%20h)
![let \: a = 6,b = 16,h = 5](https://tex.z-dn.net/?f=let%20%5C%3A%20a%20%3D%206%2Cb%20%3D%2016%2Ch%20%3D%205)
![area = \frac{1}{2} \times (6 + 16) \times 5](https://tex.z-dn.net/?f=area%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%5Ctimes%20%286%20%2B%2016%29%20%5Ctimes%205)
![area = \frac{1}{2} \times 22 \times 5](https://tex.z-dn.net/?f=area%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%5Ctimes%2022%20%5Ctimes%205)
![area = 11 \times 5](https://tex.z-dn.net/?f=area%20%3D%2011%20%5Ctimes%205)
![area = 55 \: {cm}^{2}](https://tex.z-dn.net/?f=area%20%3D%2055%20%5C%3A%20%20%7Bcm%7D%5E%7B2%7D%20)
You’re answer could be either the first or last one
Answer:
(2x + 5)(2x - 9)
Step-by-step explanation:
![4(x+1)^2 -49 \\ = \{2(x + 1) \} ^{2} - {(7)}^{2} \\ = (2x - 2)^{2} - {(7)}^{2} \\ = (2x - 2 + 7)(2x - 2 - 7) \\ = \red{ \boxed{ \bold{(2x + 5)(2x - 9)}}} \\](https://tex.z-dn.net/?f=4%28x%2B1%29%5E2%20-49%20%20%5C%5C%20%20%3D%20%20%5C%7B2%28x%20%2B%201%29%20%5C%7D%20%5E%7B2%7D%20%20-%20%20%7B%287%29%7D%5E%7B2%7D%20%20%5C%5C%20%20%3D%20%282x%20-%202%29%5E%7B2%7D%20-%20%20%7B%287%29%7D%5E%7B2%7D%20%20%20%5C%5C%20%20%3D%20%282x%20-%202%20%2B%207%29%282x%20-%20%202%20-%207%29%20%5C%5C%20%20%3D%20%20%5Cred%7B%20%5Cboxed%7B%20%5Cbold%7B%282x%20%2B%205%29%282x%20-%209%29%7D%7D%7D%20%5C%5C%20)
Given that <span>David uses 2/3 gallon of paint to cover 1/12 of a large floor.
The unit rate </span><span>showing the amount of paint David would use to cover the entire floor</span> is given by: