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3 years ago

Find the Distance between -37 and 86 on a number line.

Mathematics

1 answer:

Andrei [34K]3 years ago

6 0

Answer:

123

Step-by-step explanation: You add 37 and 86 together to get 123

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allochka39001 [22]

Answer:

i really dont know what you are saying, but thanks for the points and have a nice day! always smile peeps!

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3 years ago

Which of the following rules represents the function graphed? f(x) = x f(x) = x f(x) = x + 2

k0ka [10]

Answer:

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3 years ago

1 Find the value of C to that the function probability density function defined as follow, also calculate the man and variance /

Viefleur [7K]

Answer:

$c = \frac{1}{12}$

The mean of the distribution is 0.25.

The variance of the distribution is of 0.6875.

Step-by-step explanation:

Probability density function:

For it to be a probability function, the sum of the probabilities must be 1. The probabilities are 3c, 3c and 6c, so:

$3c + 3c + 6c = 1$

$12c = 1$

$c = \frac{1}{12}$

So the probability distribution is:

$P(X = -1) = 3c = 3\frac{1}{12} = \frac{1}{4} = 0.25$

$P(X = 0) = 3c = 3\frac{1}{12} = \frac{1}{4} = 0.25$

$P(X = 1) = 6c = 6\frac{1}{12} = \frac{1}{2} = 0.5$

Mean:

Sum of each outcome multiplied by its probability. So

$E(X) = -1(0.25) + 0(0.25) + 1(0.5) = -0.25 + 0.5 = 0.25$

The mean of the distribution is 0.25.

Variance:

Sum of the difference squared between each value and the mean, multiplied by its probability. So

$V^2(X) = 0.25(-1-0.25)^2 + 0.25(0 - 0.25)^2 + 0.5(1 - 0.25)^2 = 0.6875$

The variance of the distribution is of 0.6875.

4 0

3 years ago

- f(x) = 3x3 – 21×² – 54x<br>Zero<br>Multiplicity<br>Effect

xenn [34]

Answer:

x = 9 or x = 0 or x = -2

Step-by-step explanation:

Solve for x:

3 x^3 - 21 x^2 - 54 x = 0

The left hand side factors into a product with four terms:

3 x (x - 9) (x + 2) = 0

Divide both sides by 3:

x (x - 9) (x + 2) = 0

Split into three equations:

x - 9 = 0 or x = 0 or x + 2 = 0

Add 9 to both sides:

x = 9 or x = 0 or x + 2 = 0

Subtract 2 from both sides:

Answer: x = 9 or x = 0 or x = -2

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3 years ago

Omar deposits $400 in an account earning 4% interest compounded annually. How much interest will the account earn after 4 years

marshall27 [118]

I am not sure good luck

6 0

3 years ago