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Scorpion4ik [409]
3 years ago
8

Should be easy points!

Mathematics
1 answer:
Andru [333]3 years ago
4 0

Answer:

Let x represent the number from the sentence.

Step-by-step explanation:

2(x) + 2(1/x) = 20/3

2x + 2/x = 20/3

multiply both sides of the equation by 3x

6x + 6 = 20x

6x - 20x + 6 = 0

6x - 18x - 2x + 6 = 0

6x(x-3 -2(x-3) = 0

(6x-2 = 0 or x-3 = 0

6x = 2 or x = 3

x = 2/6

x = 1/3

Since x represented the number

Therefore x = 1/3 or 3

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The lengths of the sides of the triangle are 13cm, 14 cm, and 15 cm. Is the triangle a right triangle?
Helga [31]

Answer:

No, it is not a right triangle.

Step-by-step explanation:

If the triangle was a right triangle, then the Pythagorean Theorem states that a^2 + b^2 = c^2. Let's test it on this triangle:

13^2 + 14^2 = 365, or c^2. If this is a right triangle, c should equal 15.

However, sqrt(365) = 19.1, which is not 15. So, the triangle is not a right triangle.

4 0
3 years ago
You are wrapping a gift box. You want to tie a ribbon around the box , so that whenever the ribbon intersects an edge of the box
Paha777 [63]

You are wrapping a gift box. The length of ribbon = length + width + height of box.

<u>Solution:</u>

Given, You are wrapping a gift box.  

You want to tie a ribbon around the box, so that whenever the ribbon intersects an edge of the box, its distance to the nearest corner is 1/3 the length of the box.  

We have to find how long must the ribbon be?

The figure of this problem is attached below

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Then, total length of the ribbon = length of box + width of box + height of box.

Hence, the length of ribbon = length + width + height of box.

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3 years ago
A bag contains two red balls and five blue balls. You draw out a ball, record its color, replace it, and then draw out a second
GREYUIT [131]
Hello there, and thank you for asking your question here on brainly.

<em><u>Short answer: B. 0.71
</u></em>

<em>Why?
</em>

To find probability, you have to divide both the total number of possibilities, (7) and divide that by the greatest number of possibilities. (5). <em>5/7 </em>≈ <em>0.71

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USPshnik [31]
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3 years ago
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AfilCa [17]

Answer:

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8 0
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