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
il63 [147K]
3 years ago
12

HELP!!! Solve the system of equation by graphing : y=x+3 , 2x+y= -6 : also how do you know if it’s substitution or elimination?

Mathematics
2 answers:
Alexxx [7]3 years ago
8 0
It’s substitution you can’t do elimination

schepotkina [342]3 years ago
4 0

Either would work, but substitution looks a bit easier.

The graph for these two is shown below.


I just put the equations in just as they are written. They did not have to be changed in any way. DESMOS is a wonderful program. Very powerful.


The blue line is 2x + y = - 6

The red line is y = x + 3


The best way to solve this other than a graph is to use substitution. Put the red graph into the blue one.

2x + y = - 6

2x +(x + 3) = - 6

2x + x + 3 = - 6

3x + 3 = - 6 Subtract 3 from both sides.

3x = - 6 - 3

3x = - 9

x = -9/3

x = -3


Now go back and solve for y

y = x + 3

y = -3 + 3

y = 0


Answer

The solution point is (-3,0) just what the graph shows.

You might be interested in
What is 123,499 rounded tot he nearest thousand
schepotkina [342]
125,000 because you would round it up 
8 0
3 years ago
Read 2 more answers
Thaddeus models the number of hours of daylight in his town as
AfilCa [17]

Option (A) :  least: 10 hours; greatest: 14 hours

The function f(x) = sin x has all real numbers in its domain, but its range is

−1 ≤ sin x ≤ 1.

How to solve such range questions?

Such questions in which every term is in addition and its range is asked is simplest ones to solve if we know the range of each of term. This can be seen from this question

Given: d(t) = 2sin(xt) + 12

=  −1 ≤ sin (xt) ≤ 1.

=  −2≤ 2 sin (xt) ≤ 2.

=  10 ≤ 2sin (xt) + 12 ≤ 14

=   10 ≤d(t) ≤ 14

Thus  least: 10 hours; greatest: 14 hours

Learn more about range of trigonometric ratios here :

brainly.com/question/14304883

#SPJ4

6 0
2 years ago
Adam has created a register for the bank account he opened on April 16th. Unfortunately, Adam has made a mistake and cannot figu
sesenic [268]

Answer:

<u>D. He recorded his paycheck amount for April 23rd incorrectly. Yes, this was Adam's mistake. The correct amount should be 341.60 and not 338.45.</u>

Step-by-step explanation:

1. Let's review the information given to us to help Adam to determine where his error is.

A. He completely forgot to include the clothes he bought from Bargains RUS. No, he didn't. It was recorded properly,  including the sales tax amount.

B. He made an arithmetic error in the balance column. No he didn't, the balance was calculated correctly after each transaction.

C. He recorded one of his withdrawals in the deposit column. No, he didn't. All of the withdrawals are in the right column.

<u>D. He recorded his paycheck amount for April 23rd incorrectly. Yes, this was Adam's mistake. The correct amount should be 341.60 and not 338.45.</u>

8 0
2 years ago
Give an example of proportional reasoning
NISA [10]

Answer:

An example of something proportional is a woman's tiny feet to her short stature. An example of something proportional is the amount of pay a worker gets for the hours that they put in.

Step-by-step explanation:

Hope this helped

:)

4 0
3 years ago
Can someone help me with this it is for mathh.
lapo4ka [179]

Answer: it would be  P=4n

8 0
2 years ago
Other questions:
  • A telemarketer earns $150 a week plus $2 for each call that results in sale. Last week she earned a total of $204. How many of h
    8·1 answer
  • Differentiate f and find the domain of f. (enter the domain in interval notation.)f(x) = ln(x2 − 12x)derivative f '(x) = 2x−12x2
    5·1 answer
  • Perry observes the opposite, parallel walls of a room. In how many lines do the planes containing the walls intersect?
    5·1 answer
  • I need the answer and the method
    6·1 answer
  • What number comes next 3 4 6 9 13 18 24
    13·2 answers
  • Please help what is the value of x
    14·2 answers
  • I will name you Brainliest. Plz Help Asap 14 points
    15·2 answers
  • Jacks mother gave him 50 chocolates to give to his friends at his birthday party. He gave 3 chocolates to each of his friends an
    10·2 answers
  • Aaliyah invested $350 in an account paying an interest rate of 4% compounded continuously. Assuming no deposits or withdrawals a
    6·2 answers
  • Jena lives 1 mile from the school. She rides her bike at a speed of 4 miles per hour. If she leaves school at 2:30 p.m., what ti
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!