3 years ago

Write an equation for a line perpendicular to y=4x-5 and passing through the point (-12,1)

Mathematics

1 answer:

devlian [24]3 years ago

6 0

Answer:

y = -1/4x - 2

Step-by-step explanation:

Since the line has to be perpendicular, that means the new slope multiplied by the original should be -1. The original slope is 4, so the new one would be -1/4. Now our equation is y = -1/4x + z, z being the y intercept. We can find this by substituting the point in and finding the match. 1= -1/4(-12) + z. z has to equal -2, so the answer is y = -1/4x - 2

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A rectangular field is 90 yards long and 60 yards wide.Give the length and width of another rectangular field that has the same

Ilya [14]

Answer:

The length and width of another rectangular field with same perimeter but a larger area is 80 m by 70 m

Step-by-step explanation:

The perimeter of the existing field is

2(l + b)

= 2(90 + 60) = 2(150) = 300 yards

So we want another field having the same perimeter but a larger area

The area we have here is 90 * 60 = 5,400 square yards

If we had 80 by 70