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Delicious77 [7]
3 years ago
5

Find the value of n so that the line perpendicular to y=-3x - 6 passes through the points (n, - 12) and (4,8).

Mathematics
1 answer:
sergiy2304 [10]3 years ago
3 0
Just use an online calculator! i promise you they work better than this.
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A plane traveled 1012 miles each way to Warsaw and back. The trip there was with wind. It took 11 hours. The trip back was into
lesya [120]

Answer: speed of plane is 69/miles per hour

Speed of wind is 23 miles per hour

Step-by-step explanation:

Let x represent the speed of the plane.

Let y represent the speed of the wind.

A plane traveled 1012 miles each way to Warsaw and back. The trip there was with wind. It took 11 hours.

This means that the speed is x+y miles/hour. Therefore

1012 = 11(x+y)

1012 = 11x + 11y - - - - - - - - 1

The trip back was into wind. The trip back took 22 hours.

Since it flew against the wind, the speed would be x-y km/hour

Distance = speed × time. Therefore

1012 = 22(x - y )

1012 = 22x - 22y

Dividing through by 2

506 = 11x - 11y- - - - - - - - - 2

Adding equation 1 and equation 2, it becomes

1518 = 22x

x = 1518/22 = 69

Substituting x = 69 into

1012 = 22(x - y )

x - y = 1012/622= 46

y = 69 - 46 = 23

3 0
3 years ago
Find the inverse y=-1+1/5x pleaseee help
Galina-37 [17]

Answer:

there is no inverse

Step-by-step explanation:

to find the inverse you gotta interchange the variables and solve for y but it is 0 sooo there is no inverse, i believe.

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5.2412<br> 2x+3y=-5<br> 5x-y=-12
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Answer: 5.2412 = 5.2412 = 2x + 3y = −5 = 2x + 3y = -5 = 5x − y= -12

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They will need 11 yards of rope


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