Answer:
7
Step-by-step explanation:
Drop the decimal point and move it two places to the right.
Multiply that by 20.
Hope this helps Buddy
P.S. When you get two answer you can choose the best one and mark it brainliest.
- Courtney
The reflection of segment AB over the line x = 1, will be the line segment EF. Then the correct option is B.
<h3>What is a transformation of geometry?</h3>
A spatial transformation is each mapping of feature shapes to itself, and it maintains some spatial correlation between figures.
Reflection does not change the size and shape of the geometry.
The line segment AB is given.
Then the reflection of segment AB over the line x = 1, will be the line segment EF.
Then the correct option is B.
The missing diagram is given below.
More about the transformation of geometry link is given below.
brainly.com/question/22532832
#SPJ1
The answer to this question is that this is a rhombus
<h3>
Answer: C) 81.5%</h3>
This value is approximate.
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Explanation:
We have a normal distribution with these parameters
- mu = 128 = population mean
- sigma = 30 = population standard deviation
The goal is to find the area under the curve from x = 68 to x = 158, where x is the number of text messages sent per day. So effectively, we want to find P(68 < x < 158).
Let's convert the score x = 68 to its corresponding z score
z = (x-mu)/sigma
z = (68-128)/30
z = -60/30
z = -2
This tells us that the score x = 68 is exactly two standard deviations below the mean mu = 128.
Repeat for x = 158
z = (x-mu)/sigma
z = (158-128)/30
z = 30/30
z = 1
This value is exactly one standard deviation above the mean
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The problem of finding P(68 < x < 158) can be rephrased into P(-2 < z < 1)
We do this because we can then use the Empirical rule as shown in the diagram below.
We'll focus on the regions between z = -2 and z = 1. This consists of the blue 13.5% on the left, and the two pink 34% portions. So we will say 13.5% + 34% + 34% = 81.5%
Approximately 81.5% of the the population sends between 68 and 158 text messages per day. This value is approximate because the percentages listed in the Empirical rule below are approximate.