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Tanzania [10]
2 years ago
7

If cosx=-3/7, find the value for cos4x

Mathematics
1 answer:
charle [14.2K]2 years ago
6 0

Answer:

cos ( 4 x ) = - 479 / 2401

Step-by-step explanation:

:D

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The frequency table was made using a box containing slips of paper. Each slip of paper was numbered 0, 1, 2, 3, or 4.
inna [77]
In order to make a frequency plot first we need to find the proportion of each outcome.

Total number of results = 15+20+5+5+5 = 50

Frequency of 0 = 15
Proportion of 0 = 15/50 = 0.3

Frequency of 1 = 20
Proportion of 0 = 20/50 = 0.4

Frequency of 2 = 5
Proportion of 2 = 5/50 = 0.1

Frequency of 3 = 5
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Frequency of 4 = 5
Proportion of 4 = 5/50 = 0.1

Now we need to plot the data on a frequency plot. The x-axis shows the outcomes from 0 to 4 and y-axis shows the frequency of each outcomes. The frequency plot is shown in the figure attached with.

4 0
3 years ago
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What is the exact value that is 48% of 1165
Vera_Pavlovna [14]

We know that the percentage amount of any number can be found by first converting the the given percentage to a fraction and then multiplying it by the given number. Thus, in our case, the exact value, that is 48% of 1165 can be calculated as follows:

We know that 48\%=\frac{48}{100}=0.48

Therefore, 48% of 1165 can be re-written as: 0.48\times 1165

This can be calculated as [tex]0.48\times 1165=559.2[/tex

Therefore The exact value that is 48% of 1165 is 559.2


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3 years ago
Adding negative numbers
jekas [21]

Step-by-step explanation:

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Use what you have learned to solve the following polynomial equation by either completing the square or using the quadratic form
USPshnik [31]
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(x -5.1623)     (x+1.1623)
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(x -2.2247)  *  (x +2.2474)
</span>
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What’s bigger liter or milliliter
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A litre is bigger than a millilitre. 
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