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Natasha_Volkova [10]
3 years ago
14

What is the vale of x?

Mathematics
2 answers:
dimaraw [331]3 years ago
4 0
Since the triangles are similar, the following is true:

  20        x+6
------- = -------
2x -6       36

Then (20)(36) = (x+6)(2)(x-3) = 2[x^2+3x-18], or

720 = 2[x^2+3x-18], or 360 = x^2 + 3x - 18.

Then x^2 + 3x - 18 - 360 = 0.  This is a quadratic equation which can be solved using the quadratic formula, among other approaches.  Please apply the quadratic formula here, using a=1, b=3 and c= -378, to find x.
sertanlavr [38]3 years ago
4 0
Since they are similar
36/x+6=2x-6/20
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Derricks dog sitting and darlene's dog sitting are competing for new business. The companies ran the ads shown.
raketka [301]
This question dont make sense
7 0
3 years ago
Vance wants to determine if an old photo frame is still rectangular. The height of the frame is
sveticcg [70]

Answer:

<em>The old photo frame is still rectangular</em>

Step-by-step explanation:

<u>Rectangles</u>

The rectangle shape can be identified because it has 4 internal angles of 90° each. The diagonal forms with two adjacent sides a right triangle where the Pythagora's Theorem must stand. Being a and b the length of the sides of the rectangle and d the diagonal, then:

d^2=a^2+b^2

Vince's photo frame has dimensions of 8 inches and 6 inches, with a diagonal of 10 inches. If the above condition is met, then the frame is still rectangular.

Calculating:

10^2=6^2+8^2

100=36+64

100=100

Since the condition is met, the old photo frame is still rectangular

4 0
3 years ago
Determine o valor das seguintes expressões.
Alisiya [41]

a). (17º-17'-17")  =  17<span><span>º + 17'/60 + 17"/3600  =  </span>17.288055...</span><span>º

</span>17.288055...º / 4 = 4.322...º =  <em>4</em><span><em>º - 19' - 19.25"  </em><em /></span><span><== <span>a resposta</span>

b) (18º: 8 + 23º: 4 - 8º)

18</span><span>º / 8  =  2.25</span><span>º
23</span><span><span>º / 4  =  </span> 5.75</span><span>º

(2.25</span><span>º + 5.75</span><span><span>º </span>- 8º) = <em>0</em></span>  <== a resposta


6 0
3 years ago
Which equation below would match this graph?
ch4aika [34]
A

The y-intercept is y=3

Any number to the ^0 = 1. Because the y-intercept is 3, that means it was multiplied by 3 to get that y value, which is why a is correct.
8 0
3 years ago
Raul is drawing a plan for his bedroom. He needs to determine
Alex

The cost to buy the flooring for Raul's bedroom is $364.65.

<h3>What is the cost to buy the flooring for Raul's bedroom?</h3>

A scale drawing is a reduced form in terms of dimensions of an original image / building / object

Actual length of the bedroom = 4 x 3.25 = 13 feet

Actual length of the bedroom = 4 x 2.75 = 11 feet

Area = 143 square feet

Cost = 143 x 2.55 = $364.65

To learn more about scale drawings, please check: brainly.com/question/26388230

3 0
2 years ago
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