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KIM [24]
3 years ago
7

The mean is 18.1

Mathematics
1 answer:
julsineya [31]3 years ago
5 0
The standard deviation is 3.

The formula for a z-score is

z = (X-μ)/σ

Using our information, we have

-1.7 = (13-18.1)/σ

Multiplying both sides by σ, 
-1.7σ = 13-18.1
-1.7σ = -5.1

Divide both sides by -1.7:
-1.7σ/-1.7 = -5.1/-1.7
 σ = 3
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Complementary = 90°

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Suppose an empty flatbed railroad car sits on a track as shown below, with a person pulling on a rope with a force of 310 Newton
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Answer:

Step-by-step explanation:

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3 years ago
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1. Marisol is preparing a care package to send to her brother. The package will include a board game that weighs 4 pounds and se
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The content of care package would be a board game and several snack packs.

Given is the weight of board game = 4 pounds.

The weight of one snack pack = \frac{1}{2} \;pounds = 0.5 \;pounds

The total weight would be less than 25 pounds.


Solving for part A :

Let 'x' represents the number of snack packs.

So the weight of all snack packs would be 0.5x pounds.

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weight of care pack = 4 + 0.5x

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