We have been that frequency (y) varies inversely with wavelength (x).
We know that two inversely proportional quantities are in form
, where a is inversely proportional to b and k is constant of variation.
Our required equation would be
.
To find frequency of blue light, we will substitute
and
in our equation as:


Therefore, the frequency of blue light is 764.
Answer:
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Step-by-step explanation:
Since the two triangles are similar

Also,

Answer:
B. x = 8
Step-by-step explanation:
Answer:
1. 
2. 
3.
Step-by-step explanation:
<u>QUESTION 1</u>
The given data set for the expenditure is

The formula for calculating the mean is given by,

We need to add all the expenditure and divide by the total number of days.

This gives us,

to the nearest hundredth.
<u>QUESTION 2</u>
The standard deviation of the data set is given by the formula;

This implies that,

This will give us,




to the nearest hundredth,
.
<u>QUESTION 3</u>
The variance is the square of the standard deviation.


To the nearest hundred gives,
