Answer:
40 inches
Step-by-step explanation:
4inches/2 = 2 yards
20 yards x 2 = 40 inches
I am so sorry this is the wrong answer
Vectors in the same direction are called collinear.
Length ( u ) = 3 m
Length ( v ) = 5 m
Length ( u + v ) = Length ( u ) + Length ( v ) = 3 m + 5 m = 8 m
Answer:
C ) 8 m
Answer:the speed of the wind is 20 miles per hour.
Step-by-step explanation:
A Plane flies at x miles per hour in still air. This means that the normal speed of the plane is x miles per hour.
Let y represent the speed of the wind.
Flying with a tailwind, it's speed is 485 miles per hour. This means that
the total speed of the plane would be x + y. Therefore
x + y = 485 - - - - - - - - 1
Against the wind, it's air speed is only 445 miles per hour. This means that
the total speed of the plane would be x - y. Therefore
x - y = 445 - - - - - - - - - 2
Adding equation 1 and equation 2, it becomes
2x = 930
x = 930/2 = 465
Substituting x = 465 into equation 1, it becomes
465 + y = 485
y = 485 - 465
y = 20 miles per hour
Answer:
![\left( -\dfrac{4}{25}, -\dfrac{98}{25} \right)](https://tex.z-dn.net/?f=%5Cleft%28%20-%5Cdfrac%7B4%7D%7B25%7D%2C%20-%5Cdfrac%7B98%7D%7B25%7D%20%5Cright%29)
Step-by-step explanation:
![x+2y=-8 \\\\y=12x-2](https://tex.z-dn.net/?f=x%2B2y%3D-8%20%5C%5C%5C%5Cy%3D12x-2)
Substitute:
![x+2(12x-2)=-8](https://tex.z-dn.net/?f=x%2B2%2812x-2%29%3D-8)
Expand:
![x+24x-4=-8](https://tex.z-dn.net/?f=x%2B24x-4%3D-8)
Simplify:
![25x=-4](https://tex.z-dn.net/?f=25x%3D-4)
Divide both sides by 25:
![x=-\dfrac{4}{25}](https://tex.z-dn.net/?f=x%3D-%5Cdfrac%7B4%7D%7B25%7D)
Plug this back into one of the original equations to find y:
![-\dfrac{4}{25}+2y=-8 \\\\\\2y=-7 \dfrac{21}{25}=-\dfrac{196}{25} \\\\\\y=-\dfrac{98}{25}](https://tex.z-dn.net/?f=-%5Cdfrac%7B4%7D%7B25%7D%2B2y%3D-8%20%5C%5C%5C%5C%5C%5C2y%3D-7%20%5Cdfrac%7B21%7D%7B25%7D%3D-%5Cdfrac%7B196%7D%7B25%7D%20%5C%5C%5C%5C%5C%5Cy%3D-%5Cdfrac%7B98%7D%7B25%7D)
The ordered pair that represents this solution is therefore:
![\left( -\dfrac{4}{25}, -\dfrac{98}{25} \right)](https://tex.z-dn.net/?f=%5Cleft%28%20-%5Cdfrac%7B4%7D%7B25%7D%2C%20-%5Cdfrac%7B98%7D%7B25%7D%20%5Cright%29)
Hope this helps!