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Lilit [14]
3 years ago
11

Find the value of y in the formula y=5a-3b c, if a=12,b=4,c=8

Mathematics
2 answers:
liberstina [14]3 years ago
8 0
Y=5a-3b
Y=5(12)-3(4)
Y=60-12
Y=48

You don't have a sign between b and c in the equation, so I cannot help you with the last operation
Korvikt [17]3 years ago
6 0
So we start by substituting the numbers, y= 5(12)-3(12)(8)
y= -228
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The variance for the data is  17,507. 5.

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The weekly salaries of a sample of employees at the local bank are given in the table below.

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The mean value of the salaries of employees is;

\rm Mean= \dfrac{245+300+325+465+100}{5}\\\\Mean=287

The variance is given by;

\rm  Variance=\sqrt{\dfrac{(245-287)^2 +(300-287)^2 +(325-287)^2 +(465-287)^2 +(100-287)^2}{5-2}} \\\\Variance = 132.316}\\\\On \ Squaring \ both \ the \ sides\\\\Variance^2=17,507. 5

Hence, the variance for the data is  17,507. 5.

To know more about variance click the link given below.

brainly.com/question/7635845

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Answer:

See explanation

Step-by-step explanation:

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