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e-lub [12.9K]
3 years ago
11

Solve by using Substitution, please help! Show work if you can!

Mathematics
2 answers:
MA_775_DIABLO [31]3 years ago
8 0

Answer:

0=  x^{2}+3x

Step-by-step explanation:

Since y= x+1,

x+1=x^{2}+4x+1

--> Bring x to the other side by changing sign.

1= x^{2}+4x-x+1

1= x^{2}+3x+1

--> Bring 1 to the other side by changing sign.

0= x^{2}+3x+1-1

0=  x^{2}+3x+0

(Note: When there's is no number in the LHS side, it becomes 0)

--> Bring 0 on the RHS, to LHS

0-0= x^{2}+3x

--> 0=  x^{2}+3x

Please mark me as brainliest!

ioda3 years ago
5 0
Hey sorry if I cant show work but here is the point form:
( 0 , 1 ) and ( -3 , -2 )
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20 points if you can solve all
Damm [24]

Answer:

  1. 5
  2. 13
  3. 2
  4. 11
  5. 7
  6. 4
  7. 3
  8. 14
  9. 10
  10. 175

Step-by-step explanation:

  1. |6| = 6 means “the absolute value of 6 is 6.”
  2. |–6| = 6 means “the absolute value of –6 is 6.”

Brainlist Pls!

5 0
2 years ago
david is taller than chris, chris is shorter than anne, anne is as tall as sarah, sarah is shorter than david. who is the shorte
dybincka [34]
David > Chris
Chris < Annie
Annie = Sarah
Sarah < David
David is out since he is taller that Chris.
Anne is out since she is taller than Chris.
Sarah is out since Anne and Sarah are the same height.
Chris is the shortest, because he is shorter than Annie and Sarah, while Sarah and Annie are shorter than David, but Chris is shorter than Annie so Sarah applies too, Chris is shorter than Anne and Sarah.
Shortest ---> Tallest:
Chris, Anne, Sarah, David
4 0
3 years ago
Read 2 more answers
The first three terms of an arithmetic sequence are 8, 9, 10, .... What is the sum of the first ten terms of the series?
Goshia [24]
B. 125 every term is increasing 1+
3 0
3 years ago
A new crew of painters can paint a small apartment in 12 hours. an experienced crew can paint the small apartment in 6 hours. ho
Yakvenalex [24]
This is the concept of proportionality, we are required to calculate for the number of hours two crews can use to paint the house altogether.
Here proceed as follows;
number of hours new crew can paint=12 hrs
portion of work painted by new crew in 1 hour= 1/12

number of hours experienced crew can paint=6 hours
Portion of work painted by experienced crew in 1 hour=1/6

Portion of work painted by the two crews altogether in 1 hour will be:
1/6+1/12=1/4

thus the total amount of hours that the two painters will take to paint will be:
4 hours


6 0
3 years ago
Tom's coach keeps track of the number of plays that Tom carries the ball and how many yards he gains. Select all the statements
Brums [2.3K]

Answer:The dependent variable is the number of plays he carries the ball.

The independent variable is the number of touchdowns he scores.

The dependent variable is the number of yards he gains.

These are the ones that you need to choose.

7 0
3 years ago
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