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2 years ago

Please help me to find this out..

Mathematics

1 answer:

gayaneshka [121]2 years ago

5 0

The standard deviation is defined as the square root of the variance:

$\displaystyle \text{Variance: } \sigma^2 = \sum_{i=1}^N \dfrac{(x_i-\mu)^2}{N}$

$\displaystyle \text{Standard deviation: } \sigma = \sqrt{\sum_{i=1}^N \dfrac{(x_i-\mu)^2}{N}}$

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How many solutions can have two intersecting lines have?<br> A. 3<br> B. 0 <br> C. 1

Vladimir [108]

two intersecting lines can only have 1 solution.

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2 years ago

Read 2 more answers

You are planning to make a collage and are gathering materials.for the backing you will use a piece of heavy recycled cardboard

Lunna [17]

1. 4 3/4 feet = 19/4 feet
2 2/5 feet=12/5 feet.
multiplying them together yields
$\frac{19}{4} * \frac{12}{5} =$
$= \frac{57}{5} = 11.4 ft^{2}$

Part 2:
11.4 ft^2 - 4 1/2 ft^2=
11.4-4.5=6.9 ft^2 = 69/10 ft^2 left after you subtract the decoration in the middle
Now you're trying to find now many rectangular cutouts (that each are 3/8 ft^2) will fit in the remaining space.
You do that by dividing the remaining space left by 3/8:
$\frac{69}{10} / \frac{3}{8} = \frac{69}{10} * \frac{8}{3} = \frac{92}{5}$
since you have to have a whole number of cutouts, you round 92/5 down to 90/5, which is 18 cutouts

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2 years ago

Kaelyn Kaitlyn start with $15 and saved $3.50 each day what expression represents the total amount of Taylor save

Vinil7 [7]

Your equation should look like this:

d = day

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Hope this helps!

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2 years ago

Which number line shows the solution to −6 − (−2)? A number line is shown from negative 10 to 0 to positive 10. There are increm

VARVARA [1.3K]

Answer:

The correct option is A) A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on either side of the number line. The even numbers are labeled on either side of the number line. An arrow pointing from 0 to negative 6 is shown. Above this, another arrow pointing from negative 6 to negative 4 is shown. A vertical bar is shown at the tip of the arrowhead of the top arrow.

Step-by-step explanation:

Consider the provided expression.

−6 − (−2)

Open the parentheses and change the sign.

−6 − (−2)

−6 + 2

Subtract the numbers.

−4

Now draw this on number line.

First draw a number line is shown from −10 to 0 to 10. with scale of 2 unit on either side of the number line. Draw an arrow pointing from 0 to −6 Which show −6. Above this, another arrow pointing from −6 to −4 which shows −6 − (−2) = −4. A vertical bar is shown at the tip of the arrowhead of the top arrow.

The required number line is shown in the figure 1.

Hence, the correct option is A) A number line is shown from negative 10 to 0 to positive 10. There are increments of 2 on either side of the number line. The even numbers are labeled on either side of the number line. An arrow pointing from 0 to negative 6 is shown. Above this, another arrow pointing from negative 6 to negative 4 is shown. A vertical bar is shown at the tip of the arrowhead of the top arrow.

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2 years ago

Calculate the distance between the points G= -2.2) and C = (5, -1) in the coordinate plane.

frozen [14]

Answer:

Step-by-step explanation:

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1 year ago