How to find z scores

1 answer:

8 0

The formula for calculating a z-score is is z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation

You can refer to this link for an example:

brainly.com/question/10334874?referrer=searchResults

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How to solve log5 x/2 = 5? i got it to 2^5=x/2 but i have NO CLUE how to solve from there?

Lerok [7]

Well
$log_a(b)=c$ translates to $a^c=b$
so
log5(x/2)=5 means 5^5=x/2, so 3125=x/2, so 6250=x

4 0

2 years ago

The short sides of a rectangle are 2 inches. The long sides of the same rectangle are three less than a certain number of inches

Georgia [21]

So the “certain number” will be S.
Since 2width + 2length, the first part would be 2 times 2 which is 4
The length is S - 3
We then have to multiply this by 2
So it is 2(S-3) which is 2S-6
So the answer is 4+2S-6 which is 2S-2

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3 years ago

What’s an inverse operation?

yulyashka [42]

The opposite of a equation. Such as addition will be subtraction

4 0

2 years ago

How do you solve this question

Wewaii [24]

<h2>Solution:.</h2>

Let the ceilings be a & b

and the distance from one corner of the ceiling to the opposite be c

then using Pythagoras theorem

$c = \sqrt{a {}^{2} + b {}^{2} } \\ c = \sqrt{16 {}^{2} + 12 {}^{2} } \\ c = \sqrt{256 + 144 } \\ c = \sqrt{400} \\ c = 20$

hence ,c .°. the distance from one corner of the ceiling to the opposite is 20

3 0

2 years ago

Write and solve a system of THREE inequalities that models the situation below.

emmasim [6.3K]

Answer:

x = cupcakes

y = cookies

3x + 1y ≥ 205

x cupcakes at $3 each plus y cookies at $1 each is greater than or equal to $205

Step-by-step explanation:

6 0

2 years ago