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nikdorinn [45]
3 years ago
8

Quantities x and y are in a proportional relationship.

Mathematics
2 answers:
Rashid [163]3 years ago
8 0

Answer:

yes they are

Step-by-step explanation:

olga55 [171]3 years ago
4 0

Answer:

yes.

Step-by-step explanation:

they are.

You might be interested in
Why is the answer A? Plzzz explain.
Contact [7]

Answer:


Step-by-step explanation:

f(x) = x^2 + 4x + 4

f(x + a) = (x + a)^2 + 4(x + a) + 4

f(x + a) = x^2 + 2ax + a^2 + 4x + 4a + 4   Now combine like terms and use the distributive property.

f(x + a) = x^2 + (2a + 4)x + a^2 + 4a + 4

We are told that f(x + a) = x^2 - 6x + 9

So that means that

2a + 4 = - 6      Subtract 4 from both sides.

2a = - 6 - 4

2a = - 10          Divide by 2

a = - 10/2

a = - 5.            

But you are not finished. You have to check the last part.

a^2 + 4x + 4 = 9

(a + 2)^2 = 9

Take the square root of both sides

sqrt(a+ 2)^2 = +/- 3

a+2 = 3

a = 1.

Does this work or is it extraneous? It is extraneous because it will not work for  2(a) + 4 = - 6  

You get 6 = - 6 which is not correct. But you did give the second best answer.

a + 2 = - 3

a = - 3 - 2

a = - 5 which agrees with your previous answer.

===========

This is an extremely hard or tricky or sneaky problem. It takes a lot of conniving to get the right answer and 1 is not a left field answer. It just does not happen to be correct.

8 0
3 years ago
Tommy goes to Lowe's to buy some supplies for his yard. He buys 4 plants for n dollars, a 10-gallon bucket for $10, and a bag of
Step2247 [10]

Answer:

  4n +28

Step-by-step explanation:

Tommy's purchases add up to ...

  4n +10 + 18 = 4n +28

7 0
3 years ago
What is 2x=10 simplified?
m_a_m_a [10]

Answer:

x=5

Step-by-step explanation:

2x=10

Divide each side by 2

2x/2 = 10/2

x = 5

5 0
3 years ago
What type of graph represents the solutions to the problem y=2x+4
horrorfan [7]
This equation forms a linear line so the graph is going to be linear.

this equation in slope intercept form.
4 0
3 years ago
The system of linear equations -2y+ y = 8 and -3x -y=7 is graphed below. What is the solution to the system of equations?
victus00 [196]

Answer:

x= 1/3

y = -8

Step-by-step explanation:

-2y+ y = 8 equation 1

-3x -y =7 equation 2

using equation 1 we have:

-2y+ y = 8

-y = 8

y = -8 equation 3

using equation 3 in equation 2 we have:

-3x -y=7  

-3x -(-8)=7  

-3x +8 =7

-3x = 7-8

-3x = -1

x= 1/3

5 0
3 years ago
Read 2 more answers
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