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Pachacha [2.7K]
2 years ago
8

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Mathematics
2 answers:
MaRussiya [10]2 years ago
8 0
The answer is 41 , this is because the angles have to add up to 180 in total therefore 180-139 = 41
steposvetlana [31]2 years ago
5 0

Answer:

41

Step-by-step explanation:

Supplementary Angles add up to 180.

180 - 139 = 41

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What is combined mean
FromTheMoon [43]
Combined in mathematics is to add together to find a total. If you combine 1 and 2 you get 3.
7 0
2 years ago
A Statistics class is estimating the mean height of all female students at their college. They collect a random sample of 36 fem
Butoxors [25]

Answer: = ( 63.9, 66.7)

Therefore at 90% confidence interval (a,b)= ( 63.9, 66.7)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 65.3

Standard deviation r = 5.2

Number of samples n = 36

Confidence interval = 90%

z(at 90% confidence) = 1.645

Substituting the values we have;

65.3 +/-1.645(5.2/√36)

65.3 +/-1.645(0.86667)

65.3+/- 1.4257

65.3+/- 1.4

= ( 63.9, 66.7)

Therefore at 90% confidence interval (a,b)= ( 63.9, 66.7)

4 0
3 years ago
Evaluate the function f(x) = 2x + 8, when x = -2.
Tanzania [10]

4

search up math vvay  for more explantion also paste this in there

8 0
2 years ago
Carmen wants to install a fence . each section of fence is 2.4 metres long and cost $6.00 pre metre. Carmen will need 16 section
White raven [17]
For this case, the first thing we must do is calculate the total cost.
 We have then:
 C = (16) * (2.4) * (6)
 C = 230.4 $
 Then, the change it receives is given by:
 250 - 230.4 = 19.6 $
 Answer:
 He
 has received 19.6 $ from $ 250
5 0
3 years ago
USE UNIT RATE TO FIND THE TOTAL.
zhuklara [117]
Distance ===  3hrs  *  15miles / 1hr    === 45 miles.

Vote Brainliest! Thank you
6 0
2 years ago
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