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
Sauron [17]
3 years ago
12

What are the solutions to the system of equations? {y=x2−4x+8y=2x+3

Mathematics
1 answer:
OverLord2011 [107]3 years ago
5 0

Answer:

1) C  2) (-2,0) 3) 4)  5) c )S={(0,3)} 6) (0,2) 7)  8) Missing graph 9) Vertical line (check below) 10) B 11)

Step-by-step explanation:

1) Solving by the Addition/Elimination Method. Firstly, let's reduce one variable by making some algebraic adjustments and then adding it up:

2) Solving by Substitution Method. Where y=x+2 is plugged in the 2nd equation.

3) Solving it, again, by the Substitution Method due to the I equation form:

4) By the Addition Method

5) To use the graph method to solve the system of Linear equations is possible by graphing each equation on the Cartesian Plane.

Check the graph below, this system has only one solution.

c)S={(0,3)}

6) Solving y=-1/3x+2 y=x+2

(Check the graph below)

A) A) (0, 2)

7) Solving by Substitution Method:

8) Missing graph

9)

Check the graph below its answer

10) Solving by the Addition Method

11) Sorry, missing graph for the question.

12) Sorry, missing graph for the question.

13) D Check the graph below

14) Sorry, missing graph for the question.

You might be interested in
Helppppppppppppppppp meeeeeeeeeeeeeeeeee
EastWind [94]

Answer:

7. 163 pizzas

8. 4 pencils

Step-by-step explanation:

7. 1,956 divided by 12 equals 163

8.  \frac{829}{25} = 33 \frac{4}{25}

5 0
2 years ago
Read 2 more answers
Based on historical data in Oxnard college, we believe that 37% of freshmen do not visit their counselors regularly. For this ye
slega [8]

Answer:

A sample size of 1031 is required.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is of:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

37% of freshmen do not visit their counselors regularly.

This means that \pi = 0.37

98% confidence level

So \alpha = 0.02, z is the value of Z that has a pvalue of 1 - \frac{0.02}{2} = 0.99, so Z = 2.327.

You would like to be 98% confident that your estimate is within 3.5% of the true population proportion. How large of a sample size is required?

A sample size of n is required.

n is found when M = 0.035. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.035 = 2.327\sqrt{\frac{0.37*0.63}{n}}

0.035\sqrt{n} = 2.327\sqrt{0.37*0.63}

\sqrt{n} = \frac{2.327\sqrt{0.37*0.63}}{0.035}

(\sqrt{n})^2 = (\frac{2.327\sqrt{0.37*0.63}}{0.035})^2

n = 1030.4

Rounding up:

A sample size of 1031 is required.

4 0
3 years ago
Can someone help me ​
ICE Princess25 [194]

Answer:

S=49

Step-by-step explanation:

Any triangle has an interior angle of 180.

So just add them up and set the sum equal to 180 degrees.

2s+s+33=180

3s=180-33

3s=147 .   Divide both sides by 3 to isolate variable s

s=49

7 0
2 years ago
Read 2 more answers
Dear algebra stop asking us to find your x don't ask y​
nirvana33 [79]

Answer:

PREACH

Step-by-step explanation:

that is so smart :)

7 0
3 years ago
Read 2 more answers
Minutes played points scored
stepan [7]
I think it's A. Sorry if I get it wrong.
7 0
3 years ago
Read 2 more answers
Other questions:
  • You can solve the following proportion by cross multiplying. What will the equation be after you cross multiply? 3/9 = x/15
    8·2 answers
  • Help with sentence inequalities? <br> Two times a number x is greater than 3.
    15·1 answer
  • To get ready for the big community bake sale, a baker is baking cookies. For his first batch...
    11·2 answers
  • A mechanic charges $60 to inspect your heater, plus $70 per hour to work on it. You owe the mechanic a total of $410. Write and
    5·1 answer
  • Jamal is 167 cm tall. Which expression finds Jamal’s height in dekameters? Use the metric table to help answer the question.
    6·2 answers
  • 63% of 300 is what number ​
    12·2 answers
  • Pedro, Alex, and Jaime are having a three-point contest. Each boy takes six turns and records the number of three-pointers he sh
    15·2 answers
  • 6 times the diffrence of 12 and 9 divided by 3​
    9·1 answer
  • 2 45 is a common multiple of 5 and 9 true or false
    11·2 answers
  • I really need help on this pls :)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!