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scoray [572]
3 years ago
9

An equilateral triangle has sides of length 10 cm

Mathematics
1 answer:
Vsevolod [243]3 years ago
8 0
A=10
B=500
I think this is write sorry if I’m wrong
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Answer:

13m-3+8m

Step-by-step explanation:

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Is talking sound energy
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Explain how knowing 50 x 4 = 200 helps you find 500 X 400?
Simora [160]
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3 years ago
Please please please help if you can!<br> Thank you!!
asambeis [7]

Answer:

There are 16 rows of seats in the auditorium.

Step-by-step explanation:

Jose is correct in writing out 416 = 2x² - 6x.

Rewriting this in descending order by powers of x, we get:

2x² - 6x - 416 = 0  

Dividing all four terms by 2 simplifies this equation to x² - 3x - 208 = 0.  This equation, in turn, factors to (x + 13)(x - 16) = 0.  The only reasonable answer is x = 16.  Jose's solutions are incorrect.

There are 16 rows of seats in the auditorium.

The number of seats per row is 416/16, or 26.

8 0
3 years ago
What method can you use to find the area of the composite figure? Select three options.
Mashutka [201]

Step-by-step explanation:

<h2>This problem bothers on the mensuration of flat shapes, composite rectangle. </h2>

The correct method  for finding the area of a composite rectangle with a large rectangle and a small rectangle connected on the right side are highlighted below.

        also see attached the rough sketch of the two rectangles.

  1. Decompose the figure into two rectangles and add the areas
  2. Extend the top and rightmost sides to make a larger rectangle, find its          area, and then subtract the area of the removed corner.
  3. Decompose the figure into two rectangles, find their sum, and then subtract the area of the removed corner.

8 0
4 years ago
Read 2 more answers
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