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Debora [2.8K]
2 years ago
8

U=[Whole numbers from 1 to 14 inclusive]

Mathematics
1 answer:
swat322 years ago
3 0

Answer:

U=[2,3,4,5,6,7,8,9,10,11,12,13,14]

B=[4,6,8,10,12]

C=[3,6,9,12]

This is only how much ik but i hope this helps!:)

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Choose the property of addition that justifies the equation<br><br> 9+2=2+9
Alenkasestr [34]

Answer:

Communitive Property

Step-by-step explanation:

Communitive property is when you switch up numbers when you multiply and add but it's still the same.

4 0
2 years ago
What is the domain and range of 4n/n-5 -2?
nlexa [21]

Answer:

Domain: (-∞, 5)∪ (5, ∞)

Range: (-∞, 2)∪ (2, ∞)

7 0
2 years ago
Read 2 more answers
Deon is riding his bicycle. He rides for 7 hours at a speed of 22.4 kilometers per hour. For how many kilometers does he ride
salantis [7]
By hypothesis, Deon is riding at a speed of 22.4 kilometers per hour. So each hour, he completes 22.4 km.

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So in 7 hours, he rides 156.8 kilometers.

Hope this helps! :)
6 0
3 years ago
A researcher wants to see if birds that build larger nests lay larger eggs. He selects two random samples of nests: one of small
True [87]

Answer:

95% confidence interval for the difference between the average mass of eggs in small and large nest is between a lower limit of 0.81 and an upper limit of 2.39.

Step-by-step explanation:

Confidence interval is given by mean +/- margin of error (E)

Eggs from small nest

Sample size (n1) = 60

Mean = 37.2

Sample variance = 24.7

Eggs from large nest

Sample size (n2) = 159

Mean = 35.6

Sample variance = 39

Pooled variance = [(60-1)24.7 + (159-1)39] ÷ (60+159-2) = 7619.3 ÷ 217 = 35.11

Standard deviation = sqrt(pooled variance) = sqrt(35.11) = 5.93

Difference in mean = 37.2 - 35.6 = 1.6

Degree of freedom = n1+n2 - 2 = 60+159-2 = 217

Confidence level = 95%

Critical value (t) corresponding to 217 degrees of freedom and 95% confidence level is 1.97132

E = t×sd/√(n1+n2) = 1.97132×5.93/√219 = 0.79

Lower limit = mean - E = 1.6 - 0.79 = 0.81

Upper limit = mean + E = 1.6 + 0.79 = 2.39

95% confidence interval for the difference in average mass is (0.81, 2.39)

3 0
2 years ago
Can someone help me with this? Last one is -1/4 btw
Leya [2.2K]
2 because rise/run so 8/4 which=2
5 0
2 years ago
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