Answer:
Doreen is within the radius of the tower (at the limit).
Step-by-step explanation:
(Assuming that the first 15 miles is East or West)
We can calculate Doreen's distance to the tower using Pythagoras theorem, as these coordinates form a triangle with a 90 degrees angle:
Distance^2 = 15^2 + 8^2
Distance^2 = 225+64
Distance^2 = 289
Distance = 17 miles
Doreen is at 17 miles from the tower, and the tower range is 17 miles, so Doreen is within the radius of the tower (at the limit).
Answer:
inverse of f(x) = (2e^x)/(e^(x)-1)
Step-by-step explanation:
9514 1404 393
Answer:
85 km/h
Step-by-step explanation:
Let s represent the speed of the slower car. Then the travel time is ...
time = distance/speed
2 = 360/(s +(s+10))
4s +20 = 360 . . . . . multiply by 2s+10
4s = 340 . . . . . . . . . subtract 20
s = 85 . . . . . . . . . . . divide by 4
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The rate of the slower car is 85 km/h.
To answer this question you just need to divide the fabric she has( 7/8 yard of fabric) with the amount of fabric needed per shirt(2/7 yard of fabric). Then the calculation would be:
Number of shirt= fabric she has / fabric needed per shirt
Number of shirt = 7/8 yard / (2/7 yard/shirt)
Number of shirt = 7/8 yard * (7/2 shirt/yard)= 49/16 shirt= 3.065 shirts.
If you round it up, it should be 3 shirts.