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Sholpan [36]
3 years ago
5

What is the solution of the system using the substitution method?

Mathematics
1 answer:
Oxana [17]3 years ago
6 0
Substitute y = 3x - 7 for y in the second equation.

6x - 2(3x - 7) = 12

6x - 6x + 14 = 12

14 = 12? Incorrect. That means no solution.
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PLEASE HELP!! please!!
lukranit [14]

Answer: dang that looks hard, are you actually gonna do that

Step-by-step explanation:

6 0
3 years ago
The area of square abcd is 7cm^2 <br><br>show that x^2+4x=3
AveGali [126]

Answer:

see explanation

Step-by-step explanation:

The area (A) of the square = s² ( s is the measure of the side )

Here s = x + 2 and A = 7 , thus

(x + 2)² = 7 ← expand left side using FOIL

x² + 4x + 4 = 7 ( subtract 4 from both sides )

x² + 4x = 3 ← as required

4 0
3 years ago
Which of the following is not a solution to the inequality graphed below?
Irina18 [472]

Answer:

C ( 1,-2)

Step-by-step explanation:

We can plot the points and see what point is not in the shaded section

8 0
3 years ago
Find the greatest common factor: 4ab^2 c^4-2a^2 b^3 c^2+6a^3 b^4 c
Tatiana [17]
Well the GCF is the number that can be used to simplify, or that fits in all of your numbers for example this are all small numbers so 2 should fit in all of them 2 fits in 4 two times 2 fits in 2 one time and 2 fits in 6 three times now lets check our variable, to find the GCF of the variable first chekc if they all have the same if they don't u can't get none of taht variebles out, but if they repeat in all like the a u will take out the smallest amount out, for example the a as one in the degree of 1 the other in to the 2 degree and the last one to teh 3 degree well the smallest degree will be 1 so u will only take 1 a out so now ur GCF looks like 2a... Lets check the other variables, b is used in all of them and the smallest degree is b2 so we will take out 2 b's out so now my GCF looks like 2ab2 now lets check our last variable the, the c has the smallest degree of 1 so we will only take 1 c out
this means our final GCF is "2ab2c"

Hoep this helps
6 0
3 years ago
A line includes the points (6,9) and (14, 17). What is its equation in slope-intercept form?
Firlakuza [10]

Answer:

y = x + 3

Step-by-step explanation:

Given: (6,9)  (14, 17)

m=\frac{y_{2}-y_{1}  }{x_{2}-x_{1}  } = \frac{17-9}{14-6}=\frac{8}{8}=1

slope, m = 1

Equation of line ⇒ y=mx+b

y = 9 , x = 6 , m = 1, b = ?

9 = 1*6 + b

9 = 6 + b

b = 9 - 6 = 3

Therefore, the equation of line will be:

y = 1x + 3

y = x + 3

5 0
3 years ago
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