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3 years ago

Where x is the value, 4 is the mean,

Mathematics

1 answer:

Alik [6]3 years ago

8 0

Answer:

False

$Z = \frac{x-mean}{S.D}$

Z = x - μ /σ

Step-by-step explanation:

Explanation

The given mean of the Population= μ

Given the standard deviation of the Population(S.D) = σ

Let 'X' be the random variable in a normal distribution

Z-score

$Z = \frac{x-mean}{S.D}$

Z = x - μ /σ

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Answer each question and show your work.

Sonja [21]

Answer:

See below

Step-by-step explanation:

Each edge of the greater cube has:

1 : 1/6 = 6 times the small cube

Number of small cubes:

6³ = 216 small cubes

The volume of the bigger cube is 1 in³

The volume of each small cube is:

1 : 216 =
1/216 in³

8 0

3 years ago

Why is 5 to the 2 power also read as 5 squared

Vikki [24]

The reason for this has to do with finding the area of a square. When you are looking for the area of a square, you use the rectangle formula (since a square is also a rectangle).

The formula is Area = Length * Width

However, since in a square, the length and width are the same, both get changed to the word "Side". As a result, we get the following formula.

Area = Side * Side

This can be simplified to:

Area = Side^2.

Since each number to the second power also shows the area of a square with that given length sides, it can also be called "squared".

3 0

3 years ago

Write the equation of the circle.

mezya [45]

(x-1)^2 + (y+1)^2 = 9

5 0

3 years ago

Read 2 more answers

Pat and his friend rent an apartment together. Their total cost to move in included first months rent, last months rent and a se

zimovet [89]

Answer:

a.$375

Step-by-step explanation:

In order to calculate this you just have to keep in mind the amount of months that they paid in advance in the payment, so they had 2 months of rent fully paid in advance, we will represent that with "x", so we have 2x as the number of months, and it doesn´t say that they are paying unequal amounts of money so we will assume that they are paying half each of everything, so the equation will look like this:

$Total payment: 2 months of rent+security deposit$

If total payment= $1050 each, that means that for the two of them it´d be $2100, now we know that they paid 2 months plus a security deposit of $600, we just have to clear the payment to discover how much does the rent a month cost:

$Total payment: 2 months of rent+security deposit\\Tp=2x+600\\Tp-600=2x\\x=\frac{Tp-600}{2} \\x=\frac{2100-600}{2} \\x=750$

So one month of rent costs $750, if you divide that by 2, you get that Pat´s share of rent a month is $375.

6 0

3 years ago

Help please dont get it

shusha [124]

(y + x)^2 (3 - 6)^2

------------, when x =3 and y = -6, comes out to: ---------------- = 9/3 = 3 (answer).

3 3

3 0

3 years ago