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2 years ago

A: 27.73cm^3 B: 43.66cm^3 C: 205.202cm^3

Mathematics

1 answer:

Naddika [18.5K]2 years ago

8 0

Answer:

Step-by-step explanation:

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Is −4[3(x−7)] and 6(14−2x) equiviant

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Answer:

Yes.

Step-by-step explanation:

Set the equations equal to each other to determine their equality.

-4[3(x - 7)] = 6(14 - 2x)

Distribute the 3 and the 6 into their respective parenthesis.

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Distribute the -4 into the brackets.

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Rearrange the equations.

84 - 12x = 84 - 12x

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Step-by-step explanation:

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2 years ago

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The answer is A

Step-by-step explanation:

Supplementary angles are angles which add up to 180°

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The vertices of triangle rst are r(–1,–2), s(2,–1), and t(4,2). If δjkl ∼ δrst and the length of kl is units , what is the lengt

NemiM [27]

Answer:

3.16 units

Step-by-step explanation:

It has been given that the triangles JKL and the triangle RST are congruent.

That implies that, the length of the side JK, KL, and JL is equivalent to the length of the sides RS, ST, and RT respectively.

Now, to find the length of JK we need to find the length of the side RS. The coordinates of the points R and S are $(-1,-2)$ and $(2,-1)$ .

The length of the side RS is equal to the distance between point R and S.

RS $=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$= \sqrt{(2-(-1))^2+(-1-(-(-2))^2}$

$=\sqrt{3^2+(-1+2)^2}$

$=\sqrt{9+1}=\sqrt{10}=3.16$

Now that we have the length of the side RS, and the triangles JKL and RST are congruent therefore, the length of the side JK is 3.16 units.

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2 years ago

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