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olga nikolaevna [1]
3 years ago
13

Given the following figure. What is the value of x

Mathematics
2 answers:
Nookie1986 [14]3 years ago
3 0
Why?

Because if you draw a line from A to D to make a triangle AED, then triangle all angle add up equal 180.

kenny6666 [7]3 years ago
3 0

Answer: 11

Step-by-step explanation: We have an irregular pentagon

 

The sum of the interior angles  = 540°

 

So

 

84  +  12x  + 92  + (9x - 16)  +  (13x + 6)  = 540       simplify

 

166 +  34x  = 540              subtract 166 from both sides

 

34x  = 374        divide both sides by  34

 

x  = 11

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zaharov [31]

Answer:

x = 13.4

Step-by-step explanation:

Use the Pythagorean Theorem

a² + b² = c²

x² + 6.8² = 14.1²

x² = 14.1² - 6.8²

x² = 152.57

Take the square root of both sides

x = 12.3519229272

Rounded

x = 13.4

7 0
3 years ago
The area of a triangular block is 16 squre inches. If the base of the triangle is twice the height, how long are the base and th
klemol [59]
The area of a triangle can be calculated using the formula 

1/2 (base) (height)

Let's substitute our known values, letting x represent the value of the height of the triangle.

16  = 1/2* x* 2x

Let's Simplify!

16 = x^2

Finally, lets take the square root of both sides, to get rid of the exponent on the right side of the equation.

x= positive OR negative 4.

However, because x is equal to the height, we know that it can't be negative, so we know that it is positive 4.

The height of the triangle = 4 inches
The base of the triangle = 2h = 8 inches

6 0
3 years ago
Which of the following represents "the square of the sum of a number and 4 is 36"? x2 + 42 = 36 x2 + 4 = 36 (x + 4)2 = 36
MrRa [10]
<span>"the square of the sum of a number and 4 is 36"
=
</span><span>(x + 4)^2 = 36


</span>
5 0
3 years ago
Read 2 more answers
Please help me idk this
KiRa [710]

Answer:

x=128

Step-by-step explanation:

x and 52 are supplementary, so they add up to 180°

x+52=180\\x=128

6 0
3 years ago
Read 2 more answers
How to multiply decimals when not using models​
sukhopar [10]

Answer:

You multiply it like normal numbers. But when you do, count how many numbers are behind the decimal, say there are 2 numbers behind the decimal, once you finished multiplying the numbers you would add up all the products you got and then put the first 4 numbers you wrote behind the decimal to get the final product.

Step-by-step explanation:

Say you were multiplying 14.63 and 7.74

                 

                   14.63

<u>                    x 7.74                 </u><em>Always starting from the right side of the equation</em>

                   .5852                <em>go to the left </em> <em>four digits and put a decimal then                   </em>

<em>                   ↑←←←←                just carry the decimal down and you'll  end up with  </em>

                 10.2410              <em>the final product</em>

<u>             + 102.4100                </u>

               113.2362

8 0
3 years ago
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