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3 years ago

Any help is appreciated

Mathematics

2 answers:

AysviL [449]3 years ago

8 0

Answer:

x + 2 + 3x + 2x + 1 + 4x - 6

10x -3 (that's the expression)

Step-by-step explanation:

just add all the laps together

Svetllana [295]3 years ago

5 0

Yeah got the same thing as the other person did

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Puppies and kittens.

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Step-by-step explanation:

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3 years ago

Listed below are the gross amounts (in millions of dollars) earned in box office receipts for a recent movie. The amounts are

BaLLatris [955]

Answer:

$Range = 60-5=55$

In order to find the variance and deviation we need to find the mean with this formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X =36.07$

Now we can find the variance with the following formula:

$s^2 =\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}$

And replacing we got:

$s^2=357.610$

And the standard deviation would be:

$s = \sqrt{357.610}= 18.911$

For this case since the range observed is large is better to use a measure of variation in order to check the spread of the values and take a decision useful

Step-by-step explanation:

For this case we have the following dataset:

60 58 55 53 47 45 44 43 25 25 20 18 7 5

We can find the range with this formula:

$Range = Max-Min$

And replacing we got:

$Range = 60-5=55$

In order to find the variance and deviation we need to find the mean with this formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X =36.07$

Now we can find the variance with the following formula:

$s^2 =\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}$

And replacing we got:

$s^2=357.610$

And the standard deviation would be:

$s = \sqrt{357.610}= 18.911$

For this case since the range observed is large is better to use a measure of variation in order to check the spread of the values and take a decision useful

6 0

3 years ago

Simplify the expression use the screen shot

andrey2020 [161]

Answer:

(a/b)^k=a^k/b^k

Step-by-step explanation:

Using the laws of exponents, we know that (a/b)^k=a^k/b^k.

I couldn't get it to format correctly so just know that the "/" are for the fraction signs and the "^" is for the exponent marking.

4 0

3 years ago

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What is the GCF of 28 and 42?

lyudmila [28]

The best thing to do here is simply to list all of the actors for each number and this will let you see the GCF, 28- 1,2,4,7,14,28 42- 1,2,3,6,7,14, 21, 42 Therefore, you're correct and 14 is the GCF Hope this helps :)

7 0

4 years ago

Read 2 more answers