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dusya [7]
4 years ago
14

Use the following diagram for questions 4 - 6.

Mathematics
1 answer:
jonny [76]4 years ago
8 0

Answer:

1. C

2. B

3. B

Step-by-step explanation:

Vertical angles are the angles opposite each other when two lines cross, thus angles with measures (x+77)° and 126° are vertical angles.

Vertical angles are congruent.

Hence,

x+77=126\\ \\x=126-77\\ \\x=49^{\circ}

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A number x is greater than 0. write the word sentence as an inequality
IgorLugansk [536]

9514 1404 393

Answer:

  x > 0

Step-by-step explanation:

The only thing that needs translation to symbols is "greater than". Your "word sentence" already uses the symbols x and 0. The symbol for greater than is >. Your inequality is ...

  x > 0

8 0
3 years ago
Will do a brainly! 4/7=18/31.5
german

Answer:

True

Step-by-step explanation:

  1. 4 ÷ 7 = 0.5714
  2. 18 ÷ 31.5 = 0.5714
  3. Because they are the same result, the two fractions are equal. Therefore, the equation is true.

I hope this helps!

3 0
3 years ago
Help me please:) anyways have a good day
sleet_krkn [62]
The correct answer is option 4! you have a good day as well
6 0
3 years ago
Read 2 more answers
explain how proving two triangles congruent can help prove parts of the triangle congruent will do branliest
AleksAgata [21]

How many facts does it take to make triangles congruent? Only 3 if they are the right three and the parts are  located in the right place.

SAS where 2 sides make up one of the three angles of a triangle. The angle must between the 2 sides.

ASA where the S (side) is common to both the two given angles.

SSS where all three sides of one triangle are the same as all three sides of a second triangle. This one is my favorite. It has no exceptions.

In one very special case, you need only 2 facts, but that case is very special and it really is one of the cases above.

If you are working with a right angle triangle, you can get away with being given the hypotenuse and one of the sides. So you only need 2 facts. It is called the HL theorem. But that is a special case of SSS. The third side can be found from a^2 + b^2 = c^2.

You can also use the two sides making up the right angle but that is a special case of SAS.

Answer

There 6 parts to every triangle: 3 sides and 3 angles. If you show congruency, using any of the 3 facts above, you can conclude that the other 3 parts of the triangle are congruent as well as the three that you have.

Geometry is built on that wonderfully simple premise and it is your introduction to what makes a proof. So it's important that you understand how proving parts of congruent triangles work.

5 0
4 years ago
Jami is trying to model the movement of a tire. In order to properly model the movement, she is going to focus on the movement o
USPshnik [31]

From the given data it is clear that the amplitude of the wave will be 9 inches.

It is also clear that the speed of rotation, ω, will be: \omega=\frac{2\pi}{T}=\frac{2\pi}{8}=\frac{\pi}{4}

Now, it is given that the nozzle is on the right side of the tire and that position is going to be treated as the equilibrium position, the tire is then rotated such that the nozzle goes up at the beginning of the rotation. This condition is possible only when we have a Sine (Sin) function.

Thus, our final answer can be arrived as:

Amplitude\times Sin(\omega t)

9\times sin(\frac{\pi}{4}t) =9sin(\frac{\pi}{4}t)

Thus, out of the given options, option B is the correct answer.


5 0
4 years ago
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