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motikmotik
2 years ago
11

Find the equation of a line passing through a point (3,5) and perpendicular to the line joining the points (3, 7) and (7, -1)

Mathematics
1 answer:
eduard2 years ago
7 0

Step-by-step explanation:

we start first by finding the gradient of the line

change in y/change in x

7-(-1)/3-7=8/-4

=-2

then for perpendicular lines m1m2=-1

therefore to find the gradient of that line

-2m2=-1

therefore m2=2

so therefore

y-5/x-3=2

so y-5=2x-6

y-2x=-1

in the form y= mx +c

then y=2x-1

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The measures of two complementary angles are described by the expression(13y+12) and (20y+12). Find the measures of angles​
Pachacha [2.7K]

Step-by-step explanation:

complementary angles means that both of them together = 90

13y +12 + 20y + 12 = 90

add all y together and numbers together

33y + 24 = 90

solve for y

33y= 66. y= 2

now let's get the measurements of the angles

13(2) + 12= 38

20(2) + 12= 52

8 0
3 years ago
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stich3 [128]

Answer:

10

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3 0
2 years ago
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3 years ago
Andrea is told that the means of two groups in a study were statistically significant. She knows the means and standard deviatio
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Answer:

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3 years ago
16a, b, c, and 18a, b, c
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I can answer 18 for you, but I don't understand 16

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