it's rational number because it's in the form of p/q
Answer:I will just post them
Step-by-step explanation:
Answer:
-12x+16=y
Step-by-step explanation:
Subtract 3 from 11: 8-0.5y=6x
Move 0.5y to the right side: 8=6x+0.5y
Move 6x to the left side: -6x+8=0.5y
Divide both sides by 0.5: -12x+16=y
Answer:
Step-by-step explanation:
We have plane 1 flying SW for 4 hours at a rate of 415 mph. The distance he covers using the d = rt formula for distance, is 415(4) = 160 miles.
We also have plane 2 flying directly east (along the x-axis) for 4 hours at 327 mph. The distance he covers using the d = rt formula for distance, is 327(4) = 1308 miles. The angle in between them at this point is 135 degrees, and what we need to find is the length of the vector connecting the 2 planes. IF this was right triangle trig that distance would be the hypotenuse and we could solve for it using Pythagorean's Theorem. BUT it is NOT a right triangle, so we have to find some other means with which to solve for that length. We will use the Law of Cosines to do this.
which simplifies a bit to

If you add all of that together, you'll get
and you'll take the square root of that to get that the distance between the 2 planes after 4 hours is
2745 miles