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Nuetrik [128]
3 years ago
13

Someone please help me with this

Mathematics
1 answer:
lawyer [7]3 years ago
6 0

9514 1404 393

Answer:

  x = 39

Step-by-step explanation:

The Pythagorean theorem tells you the sum of the squares of the sides of a right triangle is the square of the hypotenuse.

  x² +80² = 89²

  x² = 89² -80² = 7921 -6400 = 1521

  x = √1521

  x = 39

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Use the Distributive Property to write an expression equivalent to 6​(q2 + 4y +30​).
anzhelika [568]
=12q+24y+180 hopes this helps
7 0
3 years ago
In the diagram, AB = 12, DX = 2.5, and BX = 5. Find CD. Show all work.
Naily [24]
I found your complete question in another source.
 See attached image. 
 For this case what you should see is that you have two similar triangles.
 We then have the following relationship:
 ((AB) / (BX)) = ((CD) / (DX))
 We cleared CD:
 CD = ((AB) / (BX)) * (DX)
 Substituting the values:
 CD = ((12) / (5)) * (2.5)
 CD = 6
 Answer: 
 CD = 6

5 0
3 years ago
For what values of x is x2-36=5x true? -9 and -4 -4 and 9 4 and -9 9 and 4.
Norma-Jean [14]

Answer: -4 and 9

Step-by-step explanation:

5 0
2 years ago
If I have the letter x after a number, what does it mean?<br><br> Ex. 20x = 5
Rzqust [24]

Answer:

It means that 20 times x is 5

also the answer to that problem (20x=5) is 1/4

Step-by-step explanation:

20x means

20 * x

and since 20 * x = 5

divide 5 and 20

5/20 = 1/4

4 0
3 years ago
A cube shaped suitcase has a length of 3x + 2 units. What is an expression for its area of the
Hitman42 [59]

Answer:

\huge\boxed{\sf 9x^2+12x+4 \ units^2}

Step-by-step explanation:

Given that,

Length of cube = l = 3x + 2 units

<h3><u>Base Area:</u></h3>

= l \times l\\\\= (3x+2)(3x+2)\\\\= 3x(3x+2)+2(3x+2)\\\\= 9x^2+6x+6x+4\\\\= 9x^2+12x+4 \ units^2\\\\\rule[225]{225}{2}

4 0
2 years ago
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