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2 years ago

Angelic found a job with an annual salary (yearly) of $ 85K. What is her monthly pay? What is

Mathematics

1 answer:

iogann1982 [59]2 years ago

3 0

Answer:

Monthly Pay: $7,083.33

Weekly Pay: $1,770.83

Step-by-step explanation:

85k divided by 12 equals 7,083.33, and 7,083.33 divided by 4 equals 1,770.83.

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If 14 people feeds on 3 cups of rice. how much rice feeds 17 people

AnnZ [28]

The answer is:

17*(3/14)

More detailed;

3/14 gives us how many it takes to feed 1 person, then we times the amount it takes to feed one person by 17 (to get 17 people)

8 0

2 years ago

Read 2 more answers

A random sample of math majors taking an introductory statistics course were surveyed after completing the final exam. They were

quester [9]

Answer:

$E(X) =1 *\frac{1}{5} +2 *\frac{2}{5} +7*\frac{2}{5}= 3.8$

Now we can find the second moment with this formula:

$E(X^2) = \sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2) =1^2 *\frac{1}{5} +2^2 *\frac{2}{5} +7^2*\frac{2}{5}= 21.4$

The variance would be given by:

$Var(X) =E(X^2) -[E(X)]^2 = 21.4 -[3.8]^2 = 6.96$

And the deviation would be:

$Sd(X) =\sqrt{6.96}= 2.638$

Step-by-step explanation:

For this case we have the following distribution given:

X 1 2 7

P(X) 1/5 2/5 2/5

We need to begin finding the mean with this formula:

$E(X) = \sum_{i=1}^n X_i P(X_i)$

And replacing we got:

$E(X) =1 *\frac{1}{5} +2 *\frac{2}{5} +7*\frac{2}{5}= 3.8$

Now we can find the second moment with this formula:

$E(X^2) = \sum_{i=1}^n X^2_i P(X_i)$

And replacing we got:

$E(X^2) =1^2 *\frac{1}{5} +2^2 *\frac{2}{5} +7^2*\frac{2}{5}= 21.4$

The variance would be given by:

$Var(X) =E(X^2) -[E(X)]^2 = 21.4 -[3.8]^2 = 6.96$

And the deviation would be:

$Sd(X) =\sqrt{6.96}= 2.638$

7 0

3 years ago

A rectangular pool is 18 meters wide and 24 meters long. If you swim diagonally across the pool, how many meters would you be sw

Zanzabum

Using the Pythagorean theorem, the diagonal measure is found as
√((18 m)² +(24 m)²) = √(324 +576) m = √900 m
= 30 m

You would be swimming 30 meters.

6 0

3 years ago

The sum of the internal angles of a convex polygon is 1080º. Calculate the number of diagonals of this polygon.

vlabodo [156]

Answer:

Step-by-step explanation:

7 0

3 years ago

Please help me I need help

dimulka [17.4K]

I think it would be 3x-4 because you could subtract WE and PE. Hope this helps!

8 0

3 years ago