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NemiM [27]
2 years ago
10

Find the equations of the two lines through the point (-5,5) which are at a distance of root 5 from the

Mathematics
1 answer:
alekssr [168]2 years ago
4 0

Answer:

Step-by-step explanation:

hello : here is an solution

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If you have a cubic polynomial of the form y = ax^3 + bx^2 + cx + d and lets say it passes through the points (2,28), (-1, -5),
Marrrta [24]

Answer:

a = 3

b = 2

c = 0

d = -4

Step-by-step explanation:

Form 4 equations and solve simultaneously

28 = a(2)³ + b(2)² + c(2) + d

28 = 8a + 4b + 2c + d (1)

-5 = -a + b - c + d (2)

220 = 64a + 16b + 4c + d (3)

-20 = -8a + 4b - 2c + d (4)

(1) + (4)

28 = 8a + 4b + 2c + d

-20 = -8a + 4b - 2c + d

8 = 8b + 2d

d = 4 - 4b

Equation (2)

c = -a + b + d + 5

c = -a + b + 4 - 4b+ 5

c = -a - 3b + 9

28 = 8a + 4b + 2c + d (1)

28 = 8a + 4b + 2(-a - 3b + 9) + 4 - 4b

28 = 6a - 6b + 22

6a - 6b = 6

a - b = 1

a = b + 1

220 = 64a + 16b + 4c + d (3)

220 = 64(b + 1) + 16b + 4(-b - 1 - 3b + 9) + 4 - 4b

220 = 60b + 100

60b = 120

b = 2

a = 2 + 1

a = 3

c = -3 - 3(2) + 9

c = 0

d = 4 - 4(2)

d = -4

8 0
3 years ago
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Why are people on here and its Saturday, and its about to be 9
Varvara68 [4.7K]

Answer:

maybe they are about to visit you or kill you or maybe something else

5 0
1 year ago
Which graph best represents the equation -5x+2y=2
masha68 [24]
This is what the graph would look like. Hope this helps:)

8 0
2 years ago
HELP PLEASEEEEEEEEEEEEEE
sineoko [7]

Answer:

I think it's B 121.5

Step-by-step explanation:

I don't feel like explaining how I got that

6 0
2 years ago
Kenny does less than 10 hours of homework per week.
e-lub [12.9K]

Answer:

where is the question?

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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