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OLEGan [10]
2 years ago
11

Which statement is true?

Mathematics
1 answer:
o-na [289]2 years ago
4 0
I believe the answer should be D, since equilateral triangles means that all the sides are the same length, and congruent means two figures having the same length, and the same shape.
Hope this helps!
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The sum of the measures of angle Y and angle Z is 180 degrees. Angle Y measures (3x + 20) degrees and Angle Z measures x degrees
Minchanka [31]
A)
The question tells us that
y + z = 180
And
y=3x+20
z=x

So we put them in the first formula:

y + z = 180
(3x + 20) + x = 180

Add and get x to one side:
4x + 20 = 180
4x + 20 - 20 = 180-20
4x = 160
Divide both sides by 4
x = 40

B)
Put x back in to equation to get size of each angle:

Y =3x +20
Y=3(40)+20
Y=120+20
Y=140

Z=x
Z=40

Verify: y+z=180
140+40=180
180=180
8 0
2 years ago
Today, 6 friends went out for lunch. Their total bill was $28.86, including tax and gratuity. They decided to split the bill equ
Elodia [21]

Answer:

5.19

Step-by-step explanation:

first do 28.86 / 6 to find out how much each paid. then subtract that number (4.81) from 10

4 0
3 years ago
Read 2 more answers
How do you solve #3? The one that is incorrect.
Sunny_sXe [5.5K]
Infinite they’re all multiples, so they are the same line
7 0
2 years ago
What is the slope of the line that passes through the points (-6, 8)(−6,8) and (-16, 33) ?(−16,33)?HELPPPPP!!!!
Marina CMI [18]

Answer:

It should be -5/2 for the points (-6,8) (-16,33)

Step-by-step explanation:

5 0
3 years ago
15. The floor plan of the basement of a shopping centre is drawn to a scale of 1:400.
maks197457 [2]

Answer:

  • 4 hectares

Step-by-step explanation:

<u>The scale factor is:</u>

  • k = 1/400

Applied to the area we consider k² as the area is the product of two dimensions.

<u>Find the actual area:</u>

  • 0.25 m² : (1/400)² =
  • 0.25 m² * 160000 =
  • 40000 m² =
  • 40000 * 1/10000 hectares =
  • 4 hectares
6 0
3 years ago
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