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
GREYUIT [131]
3 years ago
10

If you substitute 3 for x what is the matching value for y? -3x-y=-7

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
6 0

-3(3) - y = -7

-9- y = -7

add 9 to each side -y = 2


y=-2

You might be interested in
Danika concludes that the following functions are inverses of each other because f(g(x)) = x. Do you agree with Danika? Explain
arsen [322]
We cannot agree with Danika. Why? Well, The reasoning is given as follows:

Two functions are inverses of each other if and only if it is true that the composition function is given by:

f(g(x))=x

Everything is ok up to this point, right?. But let's prove that this is not fulfilled for these functions, then:

f(x)=\left | x \right | \\ \\ g(x)=-x \\ \\ f(g(x))=\left| -x \right |=\left | -1 \right | \left | x \right |=\left | x \right |  \\ \\ \therefore f(g(x))=\left | x \right | \neq x
<span>
As you can see we did not obtain the function that matches the definition of </span>inverse functions. For that reason <em>we can't agree with Danika</em>.
5 0
3 years ago
Read 2 more answers
If X to the 2nd power equals 36 What is the value of X​
Sunny_sXe [5.5K]

Answer:

6

Step-by-step explanation:

6*6=36

\sqrt{36}=6

4 0
3 years ago
What is 8.5% tax on $40 purchase​
GaryK [48]

Answer:

$43.40

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Anyone help me solve for y.
riadik2000 [5.3K]

Answer:

y = - 4

Step-by-step explanation:

Given

y = 2x + ( - 2) , that is

y = 2x - 2 ← substitute x = - 1

y = 2(- 1) - 2 = - 2 - 2 = - 4

This is confirmed by the point (- 1, - 4 ) on the graph

3 0
3 years ago
Read 2 more answers
Pls help with part a b and c
saul85 [17]

Answer:

Yeah

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Evaluate 5m for m = 3
    7·2 answers
  • Area of triangles and quadrilaterals
    11·1 answer
  • Please draw for me when you answer the question above.
    10·1 answer
  • What is (--5 to the fifth power )to the second power
    6·1 answer
  • How to answer this?<br> x+1/x+7 is less than or equal to 0
    6·1 answer
  • How many side are on a square
    12·2 answers
  • What is the answer please (1 3) y=3x+2
    11·1 answer
  • Someone find x for me lol
    10·1 answer
  • 8 oranges between 4 people. How many oranges will each person get?
    8·2 answers
  • What’s the correct answer for this question?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!