2 years ago

I need help with math

Mathematics

1 answer:

Effectus [21]2 years ago

4 0

what do you need help with, maybe I can help?

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Find each product.<br> (2.05).(0.004)

AlladinOne [14]

Answer:

$(2.05).(0.004) \\ = ( \frac{205}{100} ).( \frac{4}{1000} ) \\ = \frac{820}{100000} \\ = \frac{82}{10000} \\ = 0.0082$

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3 years ago

Please find the exact value of each trigonometric function

Lerok [7]

Mmm i don’t know sorry ok

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2 years ago

The lines below are perpendicular. If the green line has a slope of 3/4 what is the slope of the red line? Enter your answer as

krek1111 [17]

Answer:

-4/3

Step-by-step explanation:

m1m2=-1

so 3/4*X= -1

3X=-4

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2 years ago

The distributions of heights of 1000 men and 1000 women selected at random from the population of a large metropolitan area are

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2 years ago

Each morning, Hungry Harry eats some eggs. On any given morning, the number of eggs he eats is equally likely to be 1, 2, 3, 4,

mamaluj [8]

Answer:

Mean = 35

Variance = 291.7

Step-by-step explanation:

Data provided in the question:

X : 1, 2, 3, 4, 5, 6

All the data are independent

Thus,

The mean for this case will be given as:

Mean, E[X] = $\frac{\textup{Sum of all the observations}}{\textup{Total number of observations}}$

E[X] = $\frac{\textup{1+2+3+4+5+6}}{\textup{6}}$

E[X] = 3.5

For 10 days, Mean = 3.5 × 10 = 35

And,

variance = E[X²] - ( E[X] )²

Now, for this case of independent value,

E[X²] = $\frac{1^2+2^2+3^2+4^2+5^2+6^2}{\textup{6}}$

E[X²] = $\frac{1+4+9+16+25+36}{\textup{6}}$

E[X²] = $\frac{91}{\textup{6}}$

E[X²] = 15.167

Therefore,

variance = E[X²] - ( E[X] )²

variance = 15.167 - 3.5²

Variance = 2.917

For 10 days = Variance × Days²

= 2.917 × 10²

= 291.7

3 0

3 years ago