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daser333 [38]
3 years ago
5

What is the measure of the missing angle?

Mathematics
2 answers:
AURORKA [14]3 years ago
7 0

Answer:

Es 60

Step-by-step explanation:

Yanka [14]3 years ago
7 0

Answer:

60

Step-by-step explanation:

btw nice laptop :)

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A sound wave enters a new medium where sound travles faster. How does this affect the frequency and wavelength of the sound?
zhenek [66]

Answer:

The frequency doesn't change. If the wavespeed increases, then the wavelength must also increase ... It's just the distance the wave travels during each complete wiggle.

Step-by-step explanation:

  • Sound waves are a type of mechanical wave which requires a material medium for transmission. The transmission of such waves occurs as a result of vibration of particles in the material medium. The faster the vibration of the particles the higher the speed of the sound waves.
  • When a sound enters a new medium where the sound travels faster, it means the vibration of particles is high, and the wavelength of the waves increases which means the speed of the wave has increased. The frequency on the other hand will remain constant.

4 0
3 years ago
HELP ME QUICK<br> Determine a range for the missing side of the triangle below.
ElenaW [278]

Answer:

It is an isosceles triangle.

Angle R = 65 degrees

If side RT = 1 then sides SR and ST = 1.1831

Step-by-step explanation:

6 0
3 years ago
Please help me with this!!!
krok68 [10]

Answer:

the answer is A because if it is raised to the power greater than one and is added it will be greater than1

3 0
3 years ago
Please solve 3x≤−5/4
frosja888 [35]
I think it is x ≤ -5/12
6 0
3 years ago
In a running competition, a bronze, silver and gold medal must be given to the top three girls and top three boys. If 15 boys an
denis-greek [22]

Answer:

There are a total of possible 1820 results.

Step-by-step explanation:

Since there are two competitions, one for boys and one for girls, and we want all the possible results we will calculate the possible combinations for the boys and multiply them by the possible combinations for the girls. This is shown below:

Boys = \frac{15!}{3!(15 - 3)!} = \frac{15!}{3!12!} = \frac{15*14*13*12!}{3!12!}\\Boys = \frac{15*14*13}{3*2*1}\\Boys = \frac{15*14*13}{3*2*1}\\Boys = 455

Girls = \frac{4!}{3!*(4 - 3)!}\\Girls = \frac{4*3!}{3!}\\Girls = 4

Total number of possible results:

results = 4*455\\results = 1820

3 0
3 years ago
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