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Igoryamba
3 years ago
6

Find the value of x in the triangle shown below. a. x=21 b. x=42 c. x= 15 d. x=21

Mathematics
2 answers:
elena55 [62]3 years ago
7 0

THEOREM:

  • <u>Pythagorean theorem</u>:— In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides.

ANSWER:

By pythagorean property,

  • x² = 12² + 9²
  • x² = 144 + 81
  • x² = 225
  • x = √225
  • x = 15 units.

So, <u>Correct choice</u> - [C] 15 units.

wel3 years ago
3 0

Answer:

Answer:

\huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{➔}\

by using Pythagoras law:

h²=p²+b²

x²=9²+12²

x=√225=15unit

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iragen [17]

                  - - - - - - - - - - - - - - - - - - - - - - - - - - -

\large\blue\textsf{\textbf{\underline{\underline{Question:-}}}}

How do you solve this? [question in attachment]

\large\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}

In order to find the perimeter of a shape, we should add all of its sides.

Since a triangle has only 3 sides, we add 3 sides together, like so:-

      ⇒ 9x-7+12x-13+3x+8

Combine like terms:-

    ➪ 9x+12x+3x-7-13-8

Which simplifies to

     ➪9x+15x-7-21

On further simplification,

➪24x-28

So we conclude that the perimeter of the triangle is 24x-28 units.

<h3 /><h3>Good luck.</h3>

              - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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2 years ago
What is the the total cost of a book that is $45.60 with a sales tax of 7.5%
sineoko [7]
3.42 multiply 45.60 by 0.075


6 0
3 years ago
Which is 9.5 expressed as a fraction in simplist form​
stealth61 [152]

Answer:

9 1/2

Step-by-step explanation:

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6 0
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lina2011 [118]

Answer:

(3,2)

Step-by-step explanation:

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5 0
3 years ago
The perimeter of a triangle is 70 in. The shortest side is 11 in. less than the longest side. The middle side is 24 in. less tha
kondor19780726 [428]

Answer:

The sides are

6

inches,

8

inches and

10

inches

Explanation:

I'd suggest that the question should read 'The perimeter of a triangle is 24 inches. The longest side is 4 inches longer than the shortest side, and the shortest side is three-fourths the length of the middle side. How do you find the length of each side of the triangle?'

In this case the question can be answered. If

x

is the length of the middle side, then the shortest side is 3/4x and the longest side is 3/4x+4

x+3/4x+3/4x+4=24

10/4x=20

x=8

Then the shortest side is 6and the longest side is 10

Step-by-step explanation:

4 0
3 years ago
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