Answer: x-3+x+3y
Step-by-step explanation:
Because there is 2 x’s
Answer:
19. - 4/11
21. 14
Step-by-step explanation:
Im sorry but i can't solve 20
Answer:
d = 364 feet
Step-by-step explanation:
Given that,
The pressure at depth d is given by :
![P=13+\dfrac{8}{13}d](https://tex.z-dn.net/?f=P%3D13%2B%5Cdfrac%7B8%7D%7B13%7Dd)
Pressure under water is found to be 237 pounds per square foot
Now, put P = 237 to find d. So,
![237=13+\dfrac{8}{13}d\\\\237-13=13+\dfrac{8}{13}d-13\\\\224=\dfrac{8}{13}d\\\\d=\dfrac{224\times 13}{8}\\\\d=364\ ft](https://tex.z-dn.net/?f=237%3D13%2B%5Cdfrac%7B8%7D%7B13%7Dd%5C%5C%5C%5C237-13%3D13%2B%5Cdfrac%7B8%7D%7B13%7Dd-13%5C%5C%5C%5C224%3D%5Cdfrac%7B8%7D%7B13%7Dd%5C%5C%5C%5Cd%3D%5Cdfrac%7B224%5Ctimes%2013%7D%7B8%7D%5C%5C%5C%5Cd%3D364%5C%20ft)
So, the depth is equal to 364 feet.
The slope of the line is b) 9
270 miles be 90+90+90 equals 270 and thats the answer