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astra-53 [7]
3 years ago
7

What is the length of Line segment G D? GD =___

Mathematics
2 answers:
olya-2409 [2.1K]3 years ago
4 0
8/6 = 14/x
8x = 84
x = 10.5
The length of GD = 10.5
** I think that is right not positive
andrey2020 [161]3 years ago
3 0

Answer: 10.5 units

Step-by-step explanation:

Basic proportionality theorem says that if a line is drawn parallel to one side of a triangle intersecting the other two sides then it divides the two sides in the same ratio.

In the given triangle DEF , Line segment GH is drawn parallel to segment EF also GH is intersecting the other two sides ED and FH at G and H respectively.

GE= 6 units  ,  DH = 14 units ,   HF = 8 units.

Then by Basic proportionality theorem , we have

\dfrac{DG}{GE}=\dfrac{DH}{HF}\\\\\Rightarrow\dfrac{DG}{6}=\dfrac{14}{8}\\\\\Rightarrow\ DG=\dfrac{14}{8}\times6=10.5

Hence, the length of Line segment GD  = 10.5 units.

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weqwewe [10]

Answer:

x = 3    and    y = 4

Step-by-step explanation:

Given

[Correct Question]

x^2 - 2y = 1

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Required

Solve using elimination

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5y - (-2y) = 28

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Divide through ny 7

y = 4

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3 years ago
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3 0
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Read 2 more answers
Given the equation 5x − 4 = –2(3x + 2), solve for the variable. Explain each step and justify your process.
blagie [28]
A.
5x-4=-2(3x+2) \ \ \ \ \ \ \ \ \ |\hbox{expand the bracket} \\
5x-4=-2 \times 3x-2 \times 2 \\
5x-4=-6x-4 \ \ \ \ \ \ \ \ \ \ \ \ \ |\hbox{add 6x to both sides} \\
11x-4=-4 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\hbox{add 4 to both sides} \\
11x=0 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\hbox{divide both sides by 11} \\
x=0

B.
3(2x-4)=5x-1 \\
6x-12=5x-1 \\
\boxed{11x-12=-1} \Leftarrow \hbox{the first mistake} \\
11x=11 \\
\boxed{x=11} \Leftarrow \hbox{the second mistake}

Megan's solution isn't correct.
The first mistake: she subtracted 5x from the right-hand side of the equation, but added 5x to the left-hand side.
The second mistake: she divided the right-hand side of the equation by 11, but didn't divide the left-hand side.

The correct solution:
3(2x-4)=5x-1 \ \ \ \ \ \ \ \ \ \ \ |\hbox{expand the bracket} \\
3 \times 2x+3 \times (-4)=5x-1 \\ 6x-12=5x-1 \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\hbox{subtract 5x from both sides} \\
x-12=-1 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \  |\hbox{add 12 to both sides} \\
x=11
3 0
3 years ago
What type of transformation is used<br> when the line y = vx is transformed<br> into y= 5x?
dedylja [7]

Answer:

It gains a slope of 5 over 1

Step-by-step explanation:

4 0
3 years ago
3x - 6 = 2 - 5x how do i get x
Elanso [62]

Answer:

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Step-by-step explanation:

3x-6=2-5x

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2x=8-5x

Add 5x on both sides

7x=8

Divide 7 from both sides

x=0.875

4 0
3 years ago
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