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Dafna1 [17]
3 years ago
10

How do I find out if it is proportional or not?

Mathematics
2 answers:
rewona [7]3 years ago
5 0

Answer:

To see if multiple ratios are proportional, you could write them as fractions, reduce them, and compare them. If the reduced fractions are all the same, then you have proportional ratios.

Step-by-step explanation:

nasty-shy [4]3 years ago
5 0

Answer:

they are proportional

Step-by-step explanation:

to find if they are proportional, we will take x/y ratios and compare several of them, it will tell us if they are proportional or not and give us the constant of proportionality

x1/y1 = 21/3 = 7/1

x2 / y2 = 70 / 10 = 7 / 1

x3 / y3 = 49 /7 = 7 / 1

Since the x/y ration does not change, they are proportional, which means that whatever the value of y, the value of x will be y multiplied by the constant of proportionality

and the constant of proportionality is 7

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Vlad1618 [11]

Answer: Option D "Whether or not they are registered with the SEC"

Step-by-step explanation: is the best answer. This is because it is the company selling brokerage that needs to be registered with the Securities and Exchange Commission (SEC), not the broker (who acts as middle man between the seller and the buyer). Important things to evaluate the broker would be their experience, educational background and registration wit the Financial Industry Regulatory Authority (FINRA).

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3 years ago
By which rule are these triangles congruent?<br> A) AAS <br> B) ASA <br> C) SAS <br> D) SSS
exis [7]

Answer:  A) AAS

Step-by-step explanation:

In the given picture we have two triangles ΔVUW and ΔXUY .

WV ≅ YX

∠UYX≅ ∠UYW

Also, it can be seen that ∠XUY and ∠VUW are vertical angles.

[When two lines intersects then they form two pair of angle known as vertical angles ]

Also, Vertical angles are always congruent.

⇒ ∠XUY ≅ ∠VUW

Now , in ΔXUY  and  ΔVUW, we have

WV ≅ YX

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∠XUY ≅ ∠VUW

So by AAS theorem , we have

ΔVUW ≅ ΔXUY  

  • AAS theorem says that if two angles and a side of a triangle are congruent to two angles and a side of another triangle then the triangles are said to be congruent.
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3 years ago
Please help with geometry
olga_2 [115]

Presumably l and m are parallel, so n and p are transversals across parallel lines.  They'll make the obvious congruent angles and supplementary angles (add to 180 degrees) that presumably the questions will be asking about.

1. Angle 11 and angle 16.   They're what's called vertical angles from a pair of crossing lines.  Vertical angles are congruent, so m∠16 = 113°

2. Angle 1 and 3.  Those are corresponding angles on a traversal of parallels, also congruent.  m∠3 = 78°.  You got this one right, good.

3. 7 & 8.  They're what's called a linear pair, so are supplemental.  180-129=51 so m∠8 = 51°.  You probably just subtracted wrong on this one.

4. 10 & 11.   I forgot what these are called; interior angles or some such.  Anyway they're supplementary so 180-77=103.  m∠11 = 103°

5.  13 & 12.  I forgot the name here too but they're congruent so m∠12 = 59°

6. 2 & 7.  Again congruent so m∠7 = 130°  

7.  I don't know why they insist on making geometry into algebra.  Here we have angles 1 & 8, which are congruent, so

5x + 2 = 3x + 28

5x - 4x = 28 - 2

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