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Vitek1552 [10]
3 years ago
13

Someone out here know the answer?

Mathematics
1 answer:
s2008m [1.1K]3 years ago
3 0

Answer:

k = -5

Step-by-step explanation:

f(9) = 2/3*9 +k

f(9) = 6+k

k = -5

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5. The distance between two given points (5,2) and (x,5) is 5 units. Find the possible values of x. *​
kirza4 [7]
<h3>Answers:  x = 1 and x = 9</h3>

============================================================

Explanation:

We'll use the distance formula here. Rather than compute the distance d based on two points given, we'll go in reverse to use the given distance d to find what the coordinate must be to satisfy the conditions.

We're given that d = 5

The first point is (x_1,y_1) = (5,2) and the second point has coordinates of (x_2,y_2) = (x,5) where x is some real number.

We'll plug all this into the distance formula and solve for x.

d = \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\\\\5 = \sqrt{(5-x)^2+(2-5)^2}\\\\5 = \sqrt{(5-x)^2+(-3)^2}\\\\5 = \sqrt{(5-x)^2+9}\\\\\sqrt{(5-x)^2+9} = 5\\\\(5-x)^2+9 = 5^2\\\\(5-x)^2+9 = 25\\\\(5-x)^2 = 25-9\\\\(5-x)^2 = 16\\\\5-x = \pm\sqrt{16}\\\\5-x = 4 \ \text{ or } \ 5-x = -4\\\\-x = 4-5 \ \text{ or } \ -x = -4-5\\\\-x = -1 \ \text{ or } \ -x = -9\\\\x = 1 \ \text{ or } \ x = 9\\\\

This means that if we had these three points

  • A = (5, 2)
  • B = (1, 5)
  • C = (9, 5)

Then segments AB and AC are each 5 units long.

7 0
3 years ago
Who ever gets this wright first gets a thanks!
melisa1 [442]
Your answer is 15, if you need help to figure out how I did that let me know.

4 0
3 years ago
Determine the solution set of (2x - 1)2 - 100 = 0.
mylen [45]
Distribute: 4x - 2 - 100 = 0

add 102 to both sides: 4x = 102

Divide both sides by 4: x = 25.5
4 0
3 years ago
PLSSS HELP IF YOU TURLY KNOW THISS
Leona [35]

Answer:

That would be 2/3

Step-by-step explanation:

1/3 would be the first line after 0 and 3/3 is = to 1 so the correct answer is 2/3

6 0
2 years ago
Read 2 more answers
Please hurry need help
schepotkina [342]

Answer:

-11

Step-by-step explanation:

5 0
3 years ago
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