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andrey2020 [161]
4 years ago
8

If the distance between (3, k) and (7, 5) is 5, find k.

Mathematics
1 answer:
svetlana [45]4 years ago
4 0

Answer:

k = 8, 2

Step-by-step explanation:

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A line passes through (10,2) and (14,-22). Write the equation of the line in standard form.
jarptica [38.1K]

Answer:

The equation of the line in standard form is:

6x + y = 62

Step-by-step explanation:

Given the points

  • (10,2)
  • (14,-22)

Determining the slope between (10, 2) and (14, -22)

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(10,\:2\right),\:\left(x_2,\:y_2\right)=\left(14,\:-22\right)

m=\frac{-22-2}{14-10}

m=-6

The point-slope form of the line equation is  

y-y_1=m\left(x-x_1\right)

where

  • m is the slope of the line
  • (x₁, y₁) is the point

substituting the values m = -6 and the point (10, 2) in the point-slope form of the line equation

y-y_1=m\left(x-x_1\right)

y - 2 = -6(x - 10)

y - 2 = -6x +60

adding 2 to both sides

y-2+2 = -6x + 60 + 2

y = -6x +  62

We can write the equation in the standard form such as

Ax + By = C

Thus,

y = -6x +  62

adding -6x to both sides

6x + y = -6x + 62 + -6x

6x + y = 62

Therefore, the equation of the line in standard form is:

6x + y = 62

4 0
3 years ago
Solve the system using substitution y=2x+10 y=x+8
kvv77 [185]

Answer:

x = -2

Step-by-step explanation:

x+8 = 2x +10

-2x + x = 10-8

-x = 2

divide both side by -1

answer -- x = -2

8 0
3 years ago
Express the following division in the form of a + bi: (-9 - 8i)/(7 + 2i)
hodyreva [135]

Answer:

-79/53 - 38i/53

Step-by-step explanation:

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3 years ago
PLEASE ANSWER!URGENT! The table below shows the approximate height of a ball thrown up in the air after x seconds. Which quadrat
Orlov [11]

f(x)=-16x^2+99x+6

A

Step-by-step explanation:

7 0
4 years ago
What is 6 gallons in litres, to the nearest litre?
cestrela7 [59]

Answer:

22.71

Step-by-step explanation:

Please mark me branliest?!?!

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