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denis23 [38]
3 years ago
11

Which equation is the equation of the line that passes threw (-10,3) and is perpendiculare to y=5x-7?

Mathematics
1 answer:
ser-zykov [4K]3 years ago
4 0
When a line is perpendicular to another line, the gradient becomes the “negative reciprocal” which basically means flip the gradient and change the sign. In this instance the negative reciprocal of 5x has to be -1/5 as it has been flipped and made negative. At this point the answer can only be B or C.
After this you can use the point given to work out the y-intercept:
y-y1 = m(x-x1)
y-3 = -1/5(x+10)
y-3 = -1/5x - 2
y = -1/5x -1
And there’s your answer: C
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There is only one solution.

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Substitute x = -1  in y = x+2

y=-1+2

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4 0
3 years ago
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Wewaii [24]

Answer:

The maximum distance to the nearest kilometer between Westford and Centerville is 111.43 km.

Step-by-step explanation:

Local train stats:

Rate = 60 km/h

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Express train stats:

Rate = 80 km/h

Distance = (195-x) km

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Now we will equate both the times.

x/60 =(195-x)/80

x/3= (195-x)/4

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7x= 585

x = 83.57 km

195-x=195-83.57= 111.43 km

Hence, the maximum distance to the nearest kilometer between Westford and Centerville is 111.43 km.

3 0
3 years ago
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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