Answer:
I am thinking c, but I do not know
Step-by-step explanation:
I am sure but if not c then b
The answer is: " 7 " .
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Explanation:
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degrees of freedom (df) = n - 1 ;
n = sample size = 8 ;
n - 1 = 8 - 1 = 7 .
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The answer is: " 7 " .
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For you to be able to answer this you might need a tall numberline
Answer:
x = 26 2/3
y = 50
Step-by-step explanation:
you could set '2y-3x' equal to '-3x+y+50' because they are vertical angles
2y - 3x = -3x + y + 50
add 3x to each side to get:
2y = y + 50
y = 50
also, we know that (1/2y + 25) + (2y - 3x) = 180 because they form a straight line
3/2y + 25 - 3x = 180
subtract 25 from each side to get:
3/2y - 3x = 155
substitute 50 for 'y' to get:
3/2(50) - 3x = 155
75 - 3x = 155
-3x = 80
x = 26 2/3
