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Inessa05 [86]
2 years ago
14

Choose all the statements about the hexagon that are true.

Mathematics
2 answers:
SIZIF [17.4K]2 years ago
3 0

Answer:

B, D

Step-by-step explanation:

Sorry if I'm wrong. I dont know if E is right or not

valentina_108 [34]2 years ago
3 0

Answer:

B, D

Step-by-step explanation

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Mr johnson sells erasers for 3 dollars each he sold 96 erasers last week and he sold 204 erasers this week about how many more m
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The water works commission needs to know the mean household usage of water by the residents of a small town in gallons per day.
mote1985 [20]

The confidence interval for the mean usage of water is (18.7,20.5).

Given population standard deviation of 2.4, mean of 19.5 gallons per day and confidence interval of 98%.

We have to find the confidence interval for the mean usage of water.

To find out the confidence interval we have to first find margin of error.

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σ=2.4

α=0.98

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We have to find the z value for the p value 0.49 which is z=2.33

Margin of error=z*μ/\sqrt{n}

=2.33*19.5/\sqrt{3034}

=0.82

lower level=mean -m

=19.5-0.82

=18.68

after rounding upto 1 decimal

=18.7

upper mean = mean+m

=19.5+0.82

=20.52

Hence the confidence interval for the usage of water is (18.7,20.52).

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7 0
1 year ago
Please help me with this.A rectangular field is
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First, let's get the perimeter of the rectangle:
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Then let's try using a rectangle with a smaller ratio:
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Then:
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If you used a square:
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P=340
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A=85^2
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There you have it. A rectangle with a smaller area with the same perimeter.
What does it show? The smaller the difference you get from width and length, the larger the area is.
5 0
3 years ago
Read 2 more answers
Rashau made a rectangular frame for her latest oil painting. The length is 28 centimeters more than triple the width. The perime
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The length is about 28 more than three times the width. Denoted as (a) width, and as (b) the length. Then move on to lay the system of equations, as done below:

\begin{cases}2a+2b=136\\b=3a+28\end{cases}
\begin{cases}2a+2b=136|:2\\b=3a+28\end{cases}
\begin{cases}a+b=68\\b=3a+28\end{cases}
\begin{cases}a+3a+28=68\\b=3a+28\end{cases}
\begin{cases}4a=40|:4\\b=3a+28\end{cases}
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The short side has a length of 10 cm, and 58 cm long.
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3 years ago
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