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inessss [21]
3 years ago
15

Can someone tell me what the small circles on the angles of the triangles mean and what they are called?

Mathematics
2 answers:
irga5000 [103]3 years ago
7 0
<span>those are angle "tickmarks", usually you'd also have tickmarks on segments denoted by a small line or two small lines, meaning, those sides are equal in length, in this case, it means those angles are equal. 

so, in this case, ∡ G is equal to </span>∡ D, and ∡E equals ∡H and ∡F equals ∡I.
kozerog [31]3 years ago
4 0
The semi-circles in the triangles represent the verteces or different angles on certain points of the triangle.

-Hope this helped! :D
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What is the correct way to write 1,550,000,000 in scientific
Anika [276]
1.55 x10 to the power of 9

            9
1.55x10

should look something like that
6 0
3 years ago
What is the range of the function y = StartRoot x + 5 EndRoot?
Aleks [24]

Answer: y≤0

Step-by-step explanation:

Looking at the question, I'm assuming the equation is y=\sqrt{x+5}.

To find the range if this equation, it would be best to know that the graph of a square root looks like. Knowing that x=-5, the graph starts at -5 and then increases slowly to the right. Since there are no restrictions to this equation, the graph goes towards infinity.

8 0
3 years ago
Read 2 more answers
= 3when x-<br>What is the value for f(x) = 3^2x+1 when x=1/2<br>3<br>6<br>9<br>15<br>​
Zigmanuir [339]

Its 9 because it includes f(x)

6 0
3 years ago
Stuck, anyone can help?
expeople1 [14]

Answer:

Step-by-step explanation:

\sqrt{x-3} = x - 5 ( x ≥ 3 )

( \sqrt{x-3} )² = ( x - 5 )²

x - 3 = x² - 10x + 25

x² - 11x + 28 = 0

(x - 4)(x - 7) = 0

x_{1} = 7

x_{2} = 4

Check the answer:

1). x = 7

\sqrt{7-3} = 7 - 2

√4 = 2

2 = 2

2). x = 4

\sqrt{4-3} = 4 - 5

1 = - 1 (False statement) ⇒ x = 4 is an extraneous solution.

6 0
2 years ago
25 points
elixir [45]
C. 4x + y = 21

4(3) + 9 = 21
12 + 9 = 21
21 = 21
8 0
3 years ago
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