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statuscvo [17]
3 years ago
7

Solve the system using addition and put the answer in orderd pair

Mathematics
1 answer:
Blababa [14]3 years ago
4 0
X= -2 y=3, long explanation but thats the answer i got.
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Explain the difference between observed frequency and expected frequency as it relates to Chi-Square test.
emmasim [6.3K]

Answer:

Step-by-step explanation:

A Chi-square test is used to test the test of independence between rows and columns, contingency tables. It is a test related to frequencies. The observed frequency is a given statistical frequency known as the actual frequency,  the expected frequency is known as the theoretical frequency is derived from the study by using the sum total of the row and total in the column divided by their corresponding sample size.

5 0
3 years ago
What’s the area of this figure?
Ivan

Answer:

C. 155.5 cm2

Step-by-step explanation:

area = 5*15 + (15+8)*7/2 = 75 + 80.5 = 155.5 cm2

3 0
3 years ago
Suppose you have 34 bread slices and 24 cheese slices. how many cheese sandwiches can you make
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3 years ago
Someone help me please!!
Alex_Xolod [135]

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<em>it is a right angle triangle</em>

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