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Ann [662]
3 years ago
8

-2X-3-4Х A) -6x -3 B) -3 -2x -4x C) -x + 4x

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
5 0
The answer is A, make sure to combine like terms
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The least common multiple of 2 and 4
emmainna [20.7K]

Answer:

4

Step-by-step explanation:

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3 years ago
A tree 12m high is broken by the wind in such a way that its top touches the ground and makes an angle 60° with the ground. at w
Katena32 [7]

The height of broken part of tree from ground is 5.569m.

Justification:

Let BD is a tree of height 12 m.

<u>Suppose it got bent at a point C and let the part CD take the position CA, meeting the ground at A</u>.

i.e., CD = AC = h m

<u>Broken part makes 60° angle from ground</u>

So, ∠BAC = 60°

<u>Now, height of remaining part of tree</u> = (12 – h)m.

In right angled ∆ABC,

sin 60° = BC/AC

⇒ √3/2 = (12 - h)/h

⇒ √3h = 2(12 – h)

⇒ √3h = 24 – 2h

⇒ √3h + 2h = 24

⇒ h(√3 + 2) = 24

⇒ h(1.732 + 2) = 24

⇒ h(3.732) = 24

⇒ h = 24/3.732 = 6.4308 m

<u>Hence, height of broken tree from ground</u>

⇒ BC = 12 – h

⇒ 12 – 6.4308 = 5.569m

<u>Hence, tree is broken 5.569 m from ground</u>.

<u>Note</u>: See attached picture.

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3 years ago
What is the slope given the following two points (2,-4) and (1, 5)?
VMariaS [17]

Answer:

-9/1

Step-by-step explanation:

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Johnny can read 10 pages of a book in 15 minutes.
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Answer:

Its C

Step-by-step explanation:

Im really good with answers

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Which of the following does not name the same line?<br><br> MN<br><br> KM<br><br> KN<br><br> KL
garik1379 [7]

Answer:

KL does not name the same line.

Step-by-step explanation:

You'll recognize that if you go from KM, it stays on the same. You go from MN it stays on the same line. KN also stays on the same line. By K and L are two completely different lines. L can only be with N or J

8 0
3 years ago
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