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
Elina [12.6K]
2 years ago
14

Y=-x y=-7xsolve system of equations algebraically ​

Mathematics
1 answer:
snow_lady [41]2 years ago
5 0

Answer:

(x,y) = (0,0)

Step-by-step explanation:

Let both as equation (1) and (2)

put equal both sides -x = -7x

-x + 7x = 0

6x = 0

x = 0

put it in 2nd equation

y = -7(0)

y = 0

You might be interested in
In science class, a student is measuring the temperature of a solution in science experiment. The solution
Radda [10]

Answer:

-11.8

Step-by-step explanation:

<u>Given:</u>

-3.4 to 12.4        increased  (difference = 15.8)

12.4 to 20.4      decreased (difference = 8)

20.4 to 3.2        increased  (difference = 17.2)

<u>To find:</u>

Final temperature.

Solution:

As we noticed, this is a pattern of increase, decrease, increase... (and so on and so forth). From this alone, we have gotten the clue that the temperature is going to decrease. But here is the thing, How far will it decrease?

Use the difference of the starting result to find the ending result.

3.2 - 15

= -11.8

Therefore, the final temperature is -11.8.

6 0
2 years ago
What is the value of X in 1.2÷0.3= X÷0.4
sashaice [31]

1.2 \div .3 = 4
4 = x \div .4
multiply both sides by .4 to isolate the x variable.

4 \times .4 = x

x = 1.6
8 0
3 years ago
Read 2 more answers
One x-intercept for a parabola is at the point (1,0). Use the factor method to find the other x-intercept for the parabola defin
Hoochie [10]
First simplify the equation of parabola y=-5x^2+15x-10 in the following way:
D=(15)^2-4\cdot (-5) \cdot (-10)=225-200=25, \\  \sqrt{D}=5, \\  x_{1,2} = \dfrac{-15\pm 5}{2\cdot(-5)} = 2, 1  \\ -5x^2+15x-10=-5(x-1)(x-2), \\ y=-5(x-1)(x-2).
You can see that if x=1 or x=2, then y=0. Two points of intersection with x-axis are (1,0) and (2,0).

3 0
3 years ago
1859 divided by 45 eeeee
kvv77 [185]

Answer:

41.3111111111

Step-by-step explanation:

1859/45 = 41.3111111111

3 0
3 years ago
Read 2 more answers
I accidentally clicked on B. I don’t understand please help
Pavel [41]

Answer:

{-3,2,5}

hope this helps :) plz brainliest if can

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • 2.2. A vine called the mile-a-minute weed is known for growing at a very fast rate. It can grow up to 0.5 ft per day. How fast i
    11·2 answers
  • Solve. Lets see if you know how to do this.<br>(x+5)(x+5)
    12·1 answer
  • If f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (g –
    8·2 answers
  • Estimate the difference 610-187
    9·2 answers
  • Eloise started to solve a radical equation in this way: Square root of negative 2x plus 1 − 3 = x Square root of negative 2x plu
    15·1 answer
  • Find the amount or annuity of 10,00 paid yearly for three years at 8% per anum
    14·1 answer
  • Need help with this geometry question please!
    14·1 answer
  • In ΔDEF, the measure of ∠F=90°, FD = 3.3 feet, and DE = 3.9 feet. Find the measure of ∠D to the nearest degree.
    5·2 answers
  • What is the perimeter of PQR with vertices P(-2, 9), Q(7, -3) R(-2, -3) in the coordinate plane?
    9·2 answers
  • What are the dimensions of a rectangle with an area of 18 square inches and a perimeter of 18 inches? A) 9 in. x 2 in.B) 5 in. x
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!