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
Greeley [361]
3 years ago
9

Solve the system by substitution. y = -3x + 4 y = -7x Submit Answer

Mathematics
1 answer:
iVinArrow [24]3 years ago
5 0

Answer:

{y,x} = {7,-1}

Step-by-step explanation:

(-7x) + 3x = 4

- 4x = 4

 4x = - 4

x = - 1

   y = -7x

   x = -1

   y = -7(-1) = 7

You might be interested in
Can someone please explain how to solve this problem(31)
pogonyaev

Answer:

  (-1.92, 1.08)

Step-by-step explanation:

The <em>incenter</em> is the center of the largest circle that can be inscribed in the triangle. That circle is called the <em>incircle</em>. The incenter is at the point of intersection of the angle bisectors. For a right triangle, the <em>inradius</em> (the radius of the incircle), is found from a simple formula:

  r = (a + b - c)/2 . . . . . where c is the hypotenuse, and a and b are the legs

In your triangle, the inradius is ...

  r = (5 + 3 -√(5² +3²))/2 = 4 -√8.5 ≈ 1.08452

Among other things, this means the coordinates of the incenter are about (1.08, 1.08) from the right angle vertex, so are about ...

  incenter ≈ (-1.92, 1.08)

4 0
3 years ago
I need help with number 46.
grigory [225]

Answer:

1:3

Step-by-step explanation:

1/3:1

We want the ratio with whole numbers

Multiply each side by 3

1/3*3 : 1*3

1:3

6 0
3 years ago
If f left parenthesis x right parenthesis equals x squared minus 3 x plus 5 , then f left parenthesis 4 right parenthesis equals
lord [1]

Answer:

f(4) = 9

Step-by-step explanation:

f left parenthesis x right parenthesis equals x squared minus 3 x plus 5

f(x) = x² - 3x + 5

f left parenthesis 4 right parenthesis equals

f(4) =

f(x) = x² - 3x + 5

When x = 4

f(4) = 4² - 3(4) + 5

= 16 - 12 + 5

= 9

f(4) = 9

6 0
2 years ago
Please help me i cannot understand these Questions
elixir [45]
Where are the questions
6 0
3 years ago
What is |32|? <br><br> PLEASE HELP!!!
fredd [130]

Answer:

the absolute value of 32 ( |32| ) is 32

Step-by-step explanation:

absolute value is asking how far away a number is from 0. so, 32 is 32 numbers away from 0.

hope this helps!

3 0
3 years ago
Read 2 more answers
Other questions:
  • Factor the trinomial below. 4x^2+23-6. which two binomials are factors of the trinomial
    11·1 answer
  • The plot line shows the number of miles the individual members in a group of runners run each day
    7·1 answer
  • If the equation of a circle is (x+5)^2 + (y-7)^2=36, its center point is​
    14·1 answer
  • Please help<br> Write 0.16 as a fraction. <br> A) 1/12 <br> B) 1/3 <br> C) 1/6 <br> D) 1/9
    6·2 answers
  • The dance teacher bought a roll of ribbon that is 201.5 yards. She needs 15.5 yards of ribbon for each dancer. How many 15.5 yar
    10·1 answer
  • A girl is snorkeling 1 meter below sea level and then dives down another 4.5 meters. How far below sea level is the girl?
    8·1 answer
  • The slope of a line is -1/5, and the y-intercept is 5. What is the equation of the line written in general form?
    8·2 answers
  • Please help i am so confused
    15·1 answer
  • |3x-11|=x+3<br> Write both solutions as equations on the same line separated by a comma.
    11·1 answer
  • This is the one and i know its probably super easy but i dont know
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!