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blondinia [14]
3 years ago
6

The speed of sound is about 340 m/s. Find the wavelength of a sound wave that has a frequency of 20.0 cycles per second ( the lo

w end of human hearing)
A. 10.3 m
B. 17.0 m
C. 22.5 m
D. 25.0 m
Mathematics
1 answer:
siniylev [52]3 years ago
3 0

Answer:

A

Step-by-step explanation:

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What is this? I can't figure it out and forgot how to do it
faltersainse [42]

answer

x =21.24

Step-by-step explanation:

180 (n-2)

7 sides

180 * 5 = 900

add up all the sides and = them to 900

25x + 369 = 900

25x = 531

x = 21.24 = answer

3 0
2 years ago
1. Suppose we have a six-sided die that we roll once. Let ai represent the event that the result is i. Let Bj represent the even
Alex787 [66]

Using the probability concept, it is found that there is a

a) 0.2 = 20% probability that 3 is obtained.

b) 0.3333 = 33.33% probability that 6 is obtained.

c) 0.6667 = 66.67% probability of a number greater than 3.

d) 0.6667 = 66.67% probability of an even number.

A probability is the <u>number of desired outcomes divided by the number of total outcomes</u>.

Item a:

There are 5 numbers greater than 1, one of which is 3, hence:

p = \frac{1}{5} = 0.2

0.2 = 20% probability that 3 is obtained.

Item b:

There are 3 numbers greater than 3, one of which is 6, hence:

p = \frac{1}{3} = 0.3333

0.3333 = 33.33% probability that 6 is obtained.

Item c:

There are 3 even numbers, two of which are greater than 3, hence:

p = \frac{2}{3} = 0.6667

0.6667 = 66.67% probability of a number greater than 3.

Item d:

There are 3 numbers greater than 3, two of which are even, hence:

p = \frac{2}{3} = 0.6667

0.6667 = 66.67% probability of an even number.

A similar problem is given at brainly.com/question/25667645

4 0
3 years ago
HELPP PLEASE ASAP Use the Pythagorean theorem to find the missing length in the right triangle
qwelly [4]

Answer:

c = 10

Step-by-step explanation:

The pythagoras theorem :

a² + b² = c²

a = 6 and b = 8

6² + 8² = c²

36+64 = c²

100 = c²

c = √100

c= 10

Hope this helped and brainliest please

3 0
2 years ago
The radius, r, of a circle is one-half of the length of its diameter, d. r= r= d + r = d 2 r = d r = d
PIT_PIT [208]

If the radius is HALF of the diameter, then the expression would be 1/2r=d or d/2=r.

hope it helps!

8 0
3 years ago
What is the constant of proportionality
nalin [4]

Answer:

4

Step-by-step explanation:

the graph's line is going up by 4

5 0
3 years ago
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