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k0ka [10]
3 years ago
13

Please help .......​

Mathematics
1 answer:
Art [367]3 years ago
8 0

Answer:

<em>As </em><em>we </em><em>can </em><em>see </em><em>it </em><em>is </em><em>a </em><em>parallelogram </em><em>so </em><em>CD/</em><em>/</em><em>AB</em>

<em>and </em><em>AC</em><em>/</em><em>/</em><em>BD</em>

Step-by-step explanation:

SO X= 52°

(<em>BEING </em><em>ALTERNATE </em><em>ANGLES</em><em>) </em>

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Terrence plants a garden that has 8 rows of flowers, with 28 flower each row. How many flowers did Terrence plant?
My name is Ann [436]

28 * 8 = 224

Terrence planted 224 plants.

5 0
3 years ago
Read 2 more answers
in a random sample of 28 people, the mean commute time to work was 31.2 minutes and the standard deviation was 7.3 minutes. assu
antoniya [11.8K]

Answer:

The margin of error of u is of 3.8.

The 99% confidence interval for the population mean u is between 27.4 minutes and 35 minutes.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 28 - 1 = 27

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 27 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.7707

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.7707\frac{7.3}{\sqrt{28}} = 3.8

In which s is the standard deviation of the sample and n is the size of the sample.

The margin of error of u is of 3.8.

The lower end of the interval is the sample mean subtracted by M. So it is 31.2 - 3.8 = 27.4 minutes

The upper end of the interval is the sample mean added to M. So it is 31.2 + 3.8 = 35 minutes

The 99% confidence interval for the population mean u is between 27.4 minutes and 35 minutes.

3 0
3 years ago
Here is a list of numbers:<br> 14, 52, 100, 21, 83, 75, 13,39,86,52<br> Calculate the range.
Doss [256]

Answer:

87

Step-by-step explanation:

Range= biggest value-smallest value

R=100-13

R=87

3 0
3 years ago
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The graph of the equation y=|x+5| is shifted 2 units up and 6 units to the right. Rewrite the equation of the new graph for the
DerKrebs [107]

Answer:

Step-by-step explanation:

To move the graph 6 units to the right, subtract 6 in the absolute value.

y=|x+5-6|

To move it up, add 2 outside the absolute value.

y=|x+5-6|+2

Now remove the absolute values since x>1.

y=x+5-6+2

y=x+1

4 0
3 years ago
Bob can body paint 12 cars in 3 weeks. How many cars can Bob body paint in 8 weeks?
Oksana_A [137]

Answer:

32 cars

Step-by-step explanation:

we know that he can paint 12 cars in 3 weeks.

that means that he can paint 4 cars per week.

4cars x 8weeks = 32 cars in 8 weeks

3 0
3 years ago
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