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2 years ago

A wave is traveling with a speed of 500 m/sec and has a wavelength of 10 m. Determine its frequency.

Mathematics

2 answers:

Sidana [21]2 years ago

6 0

Answer:

I'm gonna get more people here

svet-max [94.6K]2 years ago

5 0

Answer:

50 hz yw pplz

Step-by-step explanation:

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A baker used 2 5/6 pounds of butter to make cookies. On a particular day, the baker used 8 1/2 pounds of butter to make cookies.

ddd [48]

8 1/2 / 2 5/6

17/2 / 17/6 

1/2 / 1/6 

3

3 0

2 years ago

a random sample of 4 claims are selected from a lot of 12 that has 3 nonconforming units. using the hypergeometric distribution

Sloan [31]

Answer:

The probability that the sample will contain exactly 0 nonconforming units is P=0.25.

The probability that the sample will contain exactly 1 nonconforming units is P=0.51.

Step-by-step explanation:

We have a sample of size n=4, taken out of a lot of N=12 units, where K=3 are non-conforming units.

We can write the probability mass function as:

$P(x=k)=\frac{\binom{K}{k}\binom{N-K}{n-k}}{\binom{N}{n}}$

where k is the number of non-conforming units on the sample of n=4.

We can calculate the probability of getting no non-conforming units (k=0) as:

$P(x=0)=\frac{\binom{3}{0}\binom{9}{4}}{\binom{12}{4}}=\frac{1*126}{495}=\frac{126}{495} = 0.25$

We can calculate the probability of getting one non-conforming units (k=1) as:

$P(x=1)=\frac{\binom{3}{1}\binom{9}{3}}{\binom{12}{4}}=\frac{3*84}{495}=\frac{252}{495} = 0.51$

5 0

3 years ago

Can you help me plz take your time tho

AnnZ [28]

Answer:

Step-by-step explanation:

the reasoning for this is because you count all the 2's and the little number in the corner and then you can't leave the 7 so you put the x7 for that reason

7 0

2 years ago

Read 2 more answers

Let a and b be real numbers satisfying a^3 - 3ab^2 = 47 and b^3 - 3a^2 b = 52. Find a^2 + b^2.

boyakko [2]

Answer: a²+b² = -99/2

Step-by-step explanation:

Since we are given two equations, this equations will be solved simultaneously to get a² and b²

a³ - 3ab² = 47 ... 1

b³ - 3a² b = 52... 2

From 1, a(a² - 3b²) = 47...3

From 2, b(b² - 3a²) = 52... 4

Adding 3 and 4, we have;

a²+b²-3b²-3a² = 99 (note that a and b will no longer be part of the equations as they have been factored out)

a²+b²-(3b²+3a²) = 99

(a²+b²) -3(b²+a²)= 99

Taking the difference we have

- 2(a²+b²) = 99

a²+b² = -99/2

8 0

3 years ago

Please ASAP. Find the value of u.

shusha [124]

Answer:

The answer is B 62

Step-by-step explanation:

I just divid 124 by 2

5 0

3 years ago