1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zaharov [31]
3 years ago
5

Find the value of k

Mathematics
1 answer:
andrey2020 [161]3 years ago
7 0
The slope of the line given is 1 because that is the coefficient in front of x. A slope is found by dividing the change in y by the change in x. Knowing this, we can set up an equation with the points given.

1 = (-2 - k)/(-7 +1)

Now we'll solve to find k.
Firstly we'll multiple both sides by (-7 + 1):

1(-7 + 1) = (-2 - k)/(-7 +1)(-7 + 1)
-7 = -2 - k

Now we'll add 2 to both sides:
-7 + 2 = -2 - k + 2
-5 = -k

Now to get k by itself we must divide by negative one on both sides: 
-5/(-1) = -k/(-1)
5 = k

Your answer is 5 = k
You might be interested in
What is the answer to x+2 3x-14
Mila [183]

Answer:

If your asking for x, the answer would be 8

Step-by-step explanation:

3 times 8 would be 24

24 minus 14 would be 10

and 8 plus 2 =10

10 = 10 there for x=8

4 0
3 years ago
A piece of string 25 1/2 inches long will be cut into 3/4 inch pieces. How many pieces will there be
Bond [772]

Answer:

34

Step-by-step explanation:

25.5 (25 1/2) divided by 0.75 (3/4) = 34

hope this helps :3

4 0
3 years ago
PLEASE HELP [Area & Circumference]
agasfer [191]

Answer:

1.

circumference=diameter ×pi

=(29×2)× pi

=59×pi

area= pie × radius²

=pi×29²

=841pi

2.

circumference =pi×16.5

area=pi×8.25²

3.

153.94÷pi

radius=square root of 49.00062388

=7.000044563

times by 2

=14.00008913

4.

28.27÷pi

8.998620482=diameter

divide by two to find radius

4.499310241

then square

20.24379265

then times that by pi

=63.59775026

4 0
3 years ago
Q..3/4 of a piece of metal has a mass on 15 kg. What is the mass of 2/5 of a piece of metal ?
Margarita [4]

Answer

8kg

Explanation

3/4--------15

2/5-------x

cross multiplying

3/4×X = 2/5×15

3X/4 = 30/5

3X/4 = 6

cross multiplying

3X = 4×6

3X = 24

dividing bothsides by 3

3X /3 = 24/3

X = 8

therefore, the answer is 8 kg

8 0
2 years ago
HELP ME PLEASE!!!!!!!<br> 50 POINTS!!
garri49 [273]

The scale factor that Thea uses to go from Rectangle Q to Rectangle R is equal to 6.

<h3>What is the scale factor from rectangle Q to rectangle R?</h3>

In geometry, the scale factor is a ratio of the resulting length to the initial length. Since the area of the square is equal to the square of its side length, then the scale factor is equal to:

k² = A' / A

k = √(A' / A)

Where:

  • k - Scale factor
  • A' - Area of the rectangle R.
  • A - Area of the rectangle Q.

If we know that A = 2 and A' = 72, then the scale factor is:

k = √(72 / 2)

k = √36

k = 6

Then, the scale factor that Thea uses to go from Rectangle Q to Rectangle R is equal to 6.

To learn more on scale factors: brainly.com/question/22312172

#SPJ1

7 0
1 year ago
Other questions:
  • Use the mid-point rule with n = 4 to approximate the area of the region bounded by y = x3 and y = x. (10 points)
    6·1 answer
  • Plzzz help am timed on this
    11·1 answer
  • T=4st/s-t what is the value of s when t = 5 and T = 40?
    12·2 answers
  • 2x + 9 = 83<br> HELP gOOD ANSWERS ONLY
    14·2 answers
  • A publisher estimates their costs of publishing a book is from $780,000 to $1,040,000. So far, they have spent $624,000. Which c
    6·1 answer
  • 12x + 10 = px + 10
    14·1 answer
  • The length of the highway is 700 miles. If 1 inch represents 75 miles, what is the length of the highway on the map?
    15·1 answer
  • Solve the system of equations by the substitution method
    10·1 answer
  • A lorry travels 100 miles at an average speed of 25 mph.<br> Work out how long the journey lasts.
    12·1 answer
  • How do you solve (a²-28)÷(a-5)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!