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
Nesterboy [21]
2 years ago
8

8. What are the solutions to this system

Mathematics
1 answer:
AVprozaik [17]2 years ago
3 0

Answer:

Below in bold.

Step-by-step explanation:

3x + y = -1

2x + y=0

Subtract to eliminate y:

3x - 2x + y - y = -1 - 0

x = -1

So, substituting for x in the first equation;

3(-1) + y = -1

y - 3 = -1

y = 2.

The solution is the ordered pair (-1, 2).

The system is a pair of straight lines which intersect at the point (-1, 2).

You might be interested in
Three paintings are shaped like an 8 ft sq, a 7ft by 4 ft rectangle, and a triangle with 6 ft base and a height of 7 ft. If thos
Advocard [28]
The square has area 8*8=64, the rectangle has area 7*4=28, and the triangle has area 7*6/2=21.  Their sum is 64+28+21=113.
3 0
3 years ago
The domain of a quadratic function is all real numbers and the range is y s 2. How many x-intercepts does the
mel-nik [20]

Answer:

There are two x-intercepts.

A quadratic function whose maximum degree two. Therefore, Total two x-intercept possible.

We are given the range of quadratic function y less than equal to 2. It means parabola is downward whose maximum value 2.

Here y is greater than 2 and parabola form downward. Here must be two x-intercept.

If a>0 then form open up parabola.

If a<0 then open down parabola.

Here open down parabola. So, we get total two x-intercept.

Please see the attachment for diagram.

5 0
3 years ago
One report said that it rained 3 inches in two days. It actually rained 1.05 inches and 1.8 inches. How far off was the report?
amid [387]

Answer:

Step-by-step explanation:

1.80 + 1.05 = 2.85

3.00 - 2.85 = .15 inches

4 0
2 years ago
The weights of baskets of strawberries are normally distributed with a mean of 3.8 ounces and a standard deviation of 1.1 ounces
Crazy boy [7]

Answer:

6 ounces

Step-by-step explanation:

this one is mainly elimination. 3.8 and 4.9 cant be because they're too close to the mean. and 7.1 is too far. you can also use z-score. the z score of .975 is 1.96 we can plug that into out formula so

1.96=(x-3.8)/1.1

multiply both sides by 1.1 and then add 3.8

you can also use scientific calculator.

second vars, 3, the area is your percent so .975, the u is mean so 3.8, the o is standard deviation so 1.1

7 0
2 years ago
How many 4 digit codes are possible if the first digit cannot be 0 and digits can be repeated?
bezimeni [28]

Answer: 9,000

Step-by-step explanation: there are 9 number options for the first digit and 10 for the other 3, so 9x10x10x10=9000

4 0
3 years ago
Other questions:
  • Which phrases can be used to represent the inequality mr024-1.jpg? Check all that apply. The product of 6.5 and the sum of a num
    14·2 answers
  • Functions f(x) and g(x) are shown below:
    6·2 answers
  • The elevation of death valley in California is 282 feet below sea level. Write that as an integer
    15·2 answers
  • Can the set of numbers 8,12,4 make a triangle? And if it can, does it make a right triangle
    5·1 answer
  • I need help how to do Arrays and an Expanded Algorithm
    7·1 answer
  • 2x-4y=8<br>y=1/2x+6<br><br>help your supposed to substitute but I dont know how​
    10·1 answer
  • (2,5) (7,9) (3,9) (5,8) is it a function
    11·1 answer
  • Which property is used in the expression of 7(9+4)=63+28
    9·1 answer
  • A bag contains purple marbles and white marbles, 95 in total. The number of purple marbles is 1 less than 5 times the number of
    9·1 answer
  • Brooklyn Bridge is 5,985 ft long and 85 ft wide. What distance is one sixth of its length
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!