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Setler [38]
2 years ago
10

8 Heights below sea level can be shown by using negative numbers.

Mathematics
1 answer:
fredd [130]2 years ago
7 0
Answer: 650 Ft above the trough of the valley. Explanation 450 - (-200) = 650
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Determine whether each statement is always sometimes or never true explain your reasoning
Aneli [31]

17) Sometimes true

  • Given only that a quadrilateral is a parallelogram, we can only conclude the opposite sides are congruent - not the adjacent sides

18) Always true

  • Adjacent angles of a parallelogram are supplementary.

19) Always true.

  • Opposite sides of a parallelogram are congruent.

20) Never true

  • Diagonals of a parallelogram bisect each other, meankng that MR = RP.
8 0
1 year ago
PLEASE HELP!!!What are good 3 examples of Geography?WILL GIVE BRAIN!!!
zvonat [6]

Answer:

The three main types of geography are physical, environmental and human geography. There are other sub-branches of geography such as political geography, historical geography and religious geography.

Physical geography deals with the study of Earth and its structure. The landforms, continents, oceans and tectonic movements are a part of physical geography. The formation of rocks, weathering, forces of erosion, winds, ocean currents and rivers are all studied as a part of physical geography. Environment geography deals specifically with the study of the interaction of plants and animals with Earth. Human geography focuses on how human societies flourish with the help of natural resources. It deals with the study of the evolution of cultures and religious beliefs. Economic, cultural and political geography are sub-branches of human geography.

Step-by-step explanation:

plz mark as brainliest

8 0
2 years ago
Sarawong invests $7,371 in a savings
zvonat [6]

Answethere should be an answer key online

Step-by-step explanation:

6 0
3 years ago
Which graph represents the solution set of the inequality Negative 14.5 less-than x?
Natalka [10]

Answer:

I think Its C

Step-by-step explanation:

I did it on unit test so idk if its right or wrong

4 0
3 years ago
Read 2 more answers
In order to estimate the difference between the average hourly wages of employees of two branches of a department store, the fol
Julli [10]

Answer:

0.071,1.928

Step-by-step explanation:

                                                Downtown Store   North Mall Store

Sample size   n                             25                        20

Sample mean \bar{x}                         $9                        $8

Sample standard deviation  s       $2                        $1

n_1=25\\n_2=20

\bar{x_1}=9\\ \bar{x_2}=8

s_1=2\\s_2=1

x_1-x_2=9-8=1

Standard error of difference of means = \sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}}

Standard error of difference of means = \sqrt{\frac{2^2}{25}+\frac{1^2}{20}}

Standard error of difference of means = 0.458

Degree of freedom = \frac{\sqrt{(\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}})^2}{\frac{(\frac{s_1^2}{n_1})^2}{n_1-1}+\frac{(\frac{s_2^2}{n_2})^2}{n_2-1}}

Degree of freedom = \frac{\sqrt{(\frac{2^2}{25}+\frac{1^2}{20}})^2}{\frac{(\frac{2^2}{25})^2}{25-1}+\frac{(\frac{1^2}{20})^2}{20-1}}

Degree of freedom =36

So, z value at 95% confidence interval and 36 degree of freedom = 2.0280

Confidence interval = (x_1-x_2)-z \times SE(x_1-x_2),(x_1-x_2)+z \times SE(x_1-x_2)

Confidence interval = 1-(2.0280)\times 0.458,1+(2.0280)\times 0.458

Confidence interval = 0.071,1.928

Hence Option A is true

Confidence interval is  0.071,1.928

4 0
3 years ago
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