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ohaa [14]
3 years ago
11

Ayo can someone help with this I dont get it​

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
5 0

Answer:

D. is the answer

Step-by-step explanation:

the side lengths always have to be equal so 6+8 = 10    and 10 is equal to 10

that means it makes a right triangle

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djverab [1.8K]

Answer:

K N O

Step-by-step explanation:

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I’ll give brainliest
Serjik [45]

Answer:

The graph of the system of equations solves the equation  -\frac{1}{4} x + 2 = 2x - 7 ⇒ C

Step-by-step explanation:

<em>Let us revise some important notes about the slope and y-intercept of a line</em>

The form of the linear equation is y = m x + b, where m is the slope and b is the y-intercept

  • If the line has a positive slope then its direction will be to the right
  • If the line has a negative slope then its direction will be to the left

The y-intercept (0, b) is the the point of intersection between the line and the y-axis

  • If the line cuts the y-axis at a point above the x-axis, then b is positive
  • If the line cuts the y-axis at a point down the x-axis, then b is negative

<em>To solve our question without any calculation, let us find the direction of the slopes and their y-intercepts</em>

∵ The direction of the blue line is to the left

→ That means m in the equation is negative

∴ Its slope is negative

∵ The line intersects the y-axis at point (0, 2)

→ That means b in the equation = 2

∴ The number in the equation is 2

→ Look at the answer we have two answers have negative slope and

   y-intercept 2 in the left hand side ⇒ C and D

∴ The equation of the blue line is represented by the left side -\frac{1}{4} x + 2

→ that means the equation of the red line is represented by the right side

∵ The direction of the red line is to the right

→ That means m in the equation is positive

∴ Its slope is positive

→ Only C has a positive slope in the right side

∴ The equation of the red line is represented by 2x - 7

The graph of the system of equations solves the equation  -\frac{1}{4} x + 2 = 2x - 7

<u><em>Another way:</em></u>

<em>You can solve each equation to find the value of x, then substitute it in one side of the equation to find y , the values of x and y must be (4, 1) as the point of intersection of the two lines in the graph</em>

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3 years ago
What is the fraction of 1578
AVprozaik [17]

Answer:

1578/1

Step-by-step explanation:

Because, it would still simplify to 1578.

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3 years ago
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Nana76 [90]

Answer: to understand this we need a picture of the triangle, but without it I know that the only answer that is correct is the 3rd

Step-by-step explanation:

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3 years ago
I need help fast... if answered Correctly I will mark brainliest
Lesechka [4]

9514 1404 393

Answer:

  (-5,1)

Step-by-step explanation:

To eliminate x, multiply the first equation by 3 and add 2 times the second equation.

  3(-2x +7y) +2(3x -4y) = 3(17) +2(-19)

  -6x +21y +6x -8y = 51 -38

  13y = 13

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  (x, y) = (-5, 1)

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