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Ann [662]
4 years ago
9

Please help 100 points

Mathematics
2 answers:
Viktor [21]4 years ago
8 0

Don't solve all the equations, you're given the answer to x so just substitute.

5/2*8+7/2=3/4*8+14

23.5=20 INCORRECT

5/4*8-9=3/2*8-21

1=-9 INCORRECT

5/4*8-2=3/2*8-4 <- YOUR ANSWER

8=8 CORRECT

Click the thanks button to let me how helpful is it

sincerely,

rb5994

:D

:D

:D

:D

iren2701 [21]4 years ago
3 0

Here's a trick.

Don't solve all the equations, you're given the answer to x so just substitute.

5/2*8+7/2=3/4*8+14

23.5=20 INCORRECT

5/4*8-9=3/2*8-21

1=-9 INCORRECT

5/4*8-2=3/2*8-4 <- YOUR ANSWER

8=8 CORRECT

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3.9x9.87<br><img src="https://tex.z-dn.net/?f=3.9%20%5Ctimes%209.87%20%5C%5C%20%20%5C%5C%20" id="TexFormula1" title="3.9 \times
drek231 [11]
3.393x i think but you can use math basic for see
6 0
3 years ago
How many solutions does this linear system have? one solution: (0, 0) one solution: (1, –4) no solution infinite number of solut
Anna35 [415]

The system of equations has infinite solutions.

<h2>Given to us,</h2>
  • y=-6x+2
  • -12x-2y=-4

<h3>Equation 2,</h3>

The value of y is already given in equation 1,

-12x-2y=-4

substituting the value of y in equation 2,

-12x-2(-6x+2)=-4\\-12x +12x-4=-4\\-12x+12x=-4+4\\0=0

The solution of the two equations is 0. Also, we can see that both the equations are in ratio.

Further, the image also shows that the line of the two equations are coinciding.

Hence, the system of equations has infinite solutions.

Learn more about System of solutions:

brainly.com/question/14264175

3 0
2 years ago
Write the equation g(x) in vertex form of a
DerKrebs [107]

The equation g(x) in vertex form of a  quadratic function for the transformations  whose graph is a  translation 4 units left and 1 unit up of the  graph of f(x) is (x-4)² + 1

Given a  quadratic function for the transformations given  the function f(x) = x²

If the function g(x) of the graph is translated 4 units to the left, the equation becomes (x-4)² (note that we subtracted 4 from the x value

  • Translating the graph 1 unit up will give the final function g(x) as (x-4)² + 1 (We added 1 since it is an upward translation.)

Hence the equation g(x) in vertex form of a  quadratic function for the transformations  whose graph is a  translation 4 units left and 1 unit up of the  graph of f(x) is (x-4)² + 1

Learn more here: brainly.com/question/15381183

8 0
3 years ago
What is the product of (4x-7)(4x+7)?
miskamm [114]
(a+b)(a-b)=a^2 - b^2
so

<span>(4x-7)(4x+7) = 16x^2 - 49

answer
</span>16x^2 - 49
6 0
3 years ago
What is the missing angle measurement
OleMash [197]

Answer:

option c. 80 degree

Step-by-step explanation:

answer = 80 degree

8 0
3 years ago
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