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Ksju [112]
3 years ago
13

Choose a method you prefer to solve for a system of linear equations. 2x + 4y = -4 2x-y=6

Mathematics
1 answer:
Artyom0805 [142]3 years ago
7 0

Answer:

Elimination

x = 2

y = -2

Step-by-step explanation:

Elimination

2x + 4y = -4

2x - y = 6

Subtract the second equation from the first

5y = -10

Divide both sides by 5

y = -2

---------------------

Substitute for y = -2 in the second equation

2x - -2 = 6

2x + 2 = 6

subtract 2 from both sides

2x = 4

Divide both sides by 2

x = 2

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Which statement about x2 + 10x = 11 is true?
Agata [3.3K]

Equations are statements that have equal values, when compared

The true statement about x^2 + 10x = 11 are x = 1 and x = -11

<h3>How to determine the true statement</h3>

The equation is given as:

x^2 + 10x = 11

Rewrite as:

x^2 + 10x - 11 = 0

Expand

x^2 + 11x - x - 11 = 0

Factorize

x(x + 11) -1( x + 11) = 0

Factor out x + 11

(x -1)(x + 11) = 0

Solve for x

x = 1 or x = -11

Hence, the true statement about x^2 + 10x = 11 are x = 1 and x = -11

Read more about equations at:

brainly.com/question/1214333

6 0
2 years ago
at a factory that produces pistons for cars, machine 1 produced 700 satisfactory pistons and 300 unsatisfactory pistons today. m
viva [34]
<span>the proccess of choosing is independent so probability of choosing from machin1 is:300/1000 =0.3
choosing from machin2 is:707/1010=0.7
the total result is 0.3*0.7=0.21 ;</span>
5 0
4 years ago
An inscribed angle measures 48°; so, the intercepted arc measures 24°. <br> True <br> False
tigry1 [53]

False


The arc is double the inscribed angle.

Arc = 2*48 = 96

4 0
3 years ago
Read 2 more answers
(-5,-2) and m=4/5 a point and a slope
beks73 [17]

Answer:

y=4/5-2

Step-by-step explanation:

m=slope

m=4/5

(x,y)

(-5,-2)

y=mx+b

y=4/5-2

6 0
4 years ago
-3x + 4y = -2 6x - y = 11 What is the value of the x-coordinate?
Andrej [43]
The solution is
(2,1)
So the value of the x-coordinate is 2
4 0
4 years ago
Read 2 more answers
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