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
vredina [299]
3 years ago
15

The points (-1,4) and (2,r) lie on the line with slope -3. Find the missing coordinate r. R=?

Mathematics
1 answer:
scoundrel [369]3 years ago
5 0

Answer:

r=-5

Step-by-step explanation:

-3=r-4/2-(-1) (plug into the slope formula)

-3=r-4/3 (solve the denominator)

-9=r-4 (multiply both sides by 3)

-5=r (add 4 to both sides)

You might be interested in
JHILIA
Gemiola [76]
This answer to this 9 months
3 0
3 years ago
Write the equation of the line parallel to 3x-y=7 that passes through point (-5, -3)
IceJOKER [234]
<h2>Answer:</h2>

\boxed{y=3x+12}

<h2>Step-by-step explanation:</h2>

In this problem we know the equation of a line, which is:

3x-y=7

We also can write this equation as:

y=3x-7

This line has a slope m=3 which is also the slope of the line we are looking for because they're parallel. We also have a point (-5,-3). Therefore, we can write this equation as follows:

y-y_{0}=m(x-x_{0}) \\ \\ y-(-3)=3(x-(-5)) \\ \\ y+3=3(x+5) \\ \\ y+3=3x+15 \\ \\ \boxed{y=3x+12}

From the figures below, the line in red is 3x-y=7 while the line in blue is y=3x+12 and this line passes through the point (-5, -3)!

4 0
3 years ago
Read 2 more answers
Bye bye,<br> im getting off brainly because my back &amp; head hurt.<br> so bye bye<br> &lt;3 ;)
Alekssandra [29.7K]

Answer:

oh- bye bye-?

Step-by-step explanation:

have a good rest of your day/night/afternoon/evening- byee-

3 0
3 years ago
Read 2 more answers
Sarah will mix yellow paint and red paint in the ratio 2 parts yellow to 3 parts red to create a certain shade of orange paint.
enyata [817]

Answer:

D. 59.50$

Step-by-step explanation:

Lets make an equation:

we know she is going to use 2 parts of yellow to 3 parts of red and she needs 10 quarts, therefore the equation would be:

2x+3x=10

x = 2

2 * 2 = 4( we need four quarts of yellow paint)

Price for yellow paint = 4 * 5.50 = 22

2 * 3 = 6(we need 6 quarts of red paint)

Price for red paint = 6 * 6.25  37.5

Add those prices: 37.5 + 22 = 59.50$

5 0
3 years ago
Find the slope of a line perpendicular to each given line.
34kurt

Answer:

D) 2

Step-by-step explanation:

Reciprical of slope

-1/2

reciprical is

+2/1

2

5 0
3 years ago
Other questions:
  • Omar has a gift card for $40.00 at a gift shop. Omar wants to buy a hat for himself for $13.50. For his friends, he would like t
    10·2 answers
  • Find the total thickness of two pieces of wood that a carpenter glued together if one is 5/16 inch thick and the other is 7/8 in
    12·2 answers
  • How do I find the missing side lengths?
    9·1 answer
  • Use a calculator to find a decimal approximation for the following trigonometric function.
    7·2 answers
  • A number is multiplied by 5. If 5 is added to the product, you get 10. What is the number?
    12·2 answers
  • Write y=x^2-4x-1 in vertex form
    14·1 answer
  • What is true of the function g(x)=-2x^2+5?
    10·1 answer
  • A biologist is recording the loss of fish in a pond. He notes the number of fish, f, in the pond on June 1. On July 1 there were
    12·1 answer
  • Two math students were asked to write an exponential growth equation that had a starting value of 300 and a growth rate of 2%. P
    5·1 answer
  • A recipe calls for 2 1/2 cups of flour. If I already added 3/4 of a cup of flour, how much more flour would I need to add?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!