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4 years ago

Find the perimeter of the polygon

Mathematics

1 answer:

wariber [46]4 years ago

8 0

Answer:

56 yds

Step-by-step explanation:

Simply add up all the sides to find your perimeter:

12 + 12 + 18 + 14 = 56

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Let x=6 and z=2 write the ratio in simplest form 12. 2x=y/3 13.4z-3/x

ale4655 [162]

Answer:

12. 10/3, which simplifies to 3 1/3

13. 5/6

Step-by-step explanation:

4 0

3 years ago

Write an equation in slope-intercept form tha is parallel to y=4x-2 and has a y-intercept of -2

alexgriva [62]

Answer:

y = 4x - 2

Step-by-step explanation:

Formula: y = mx + b

Parallel means same slope as original and b is -2.

7 0

3 years ago

Given the following data set:

Paha777 [63]

Answer:

40%

Step-by-step explanation:

x = # of values below x/n * 100

14 = 4/10 * 100

14 = 40

4 0

3 years ago

Solve the following inequality and create the representing number line. 4(2w+3) ≥ - 28

Alona [7]

Answer:

4(2w+3) ≥ - 28

8w+12≥-28

8w≥-40

w≥-5

Hope This Helps!!!

7 0

3 years ago

Read 2 more answers

a sociologist develops a test to measure attitudes towards public transportation and 27 randomly selected subjects are given the

horsena [70]

Answer:

The 95% confidence interval for the mean score is:

$\mu$ ∈ $(67.73,\ \ 84.67)$

Step-by-step explanation:

We want to estimate the population mean, that is, the average score of all the subjects.

An estimator for the population mean μ is ${\overline {x}}$

Since the sample size is $27$ then we use the statistic $t_{\frac{\alpha}{2}}$ with $27-1 = 26$ degrees of freedom

The confidence interval for the mean is:

$({\displaystyle {\overline {x}}} + t_{\frac{\alpha}{2}}\frac{S}{\sqrt{n}},\ \ {\displaystyle {\overline {x}}} - t_{\frac{\alpha}{2}}\frac{S}{\sqrt{n}})$

Where

${\displaystyle {\overline {x}}}=76.2$ is the average score of the sample

$S=21.4$ is the standard deviation of the sample

$n= 27$ is the sample size

$t_{\frac{\alpha}{2}} = 2.056$ for a confidence level of 95% and 26 degrees of freedom

Then confidence interval is

$(76.2 + 2.056\frac{21.4}{\sqrt{27}},\ \ {76.2 - 2.056\frac{21.4}{\sqrt{27}})$

$(76.2 + 8.467,\ \ 76.2 - 8.467)$

$\mu$ ∈ $(67.73,\ \ 84.67)$

7 0

3 years ago