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notka56 [123]
3 years ago
13

For the data in the table does y vary directly with x. If it does write an equation for the direct variation.

Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
7 0
D. no y does not vary directly with x
AnnZ [28]3 years ago
6 0
Y varies directly with x means
y=kx or
y/x=k
see if that's true for all of them, if they all have same k value, it is direct variation

24/32=3/4
8/16=1/2
6/8=3/4

no

D is answer
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You take a three-question true or false quiz. You guess on all the questions. What is the probability that you will get a perfec
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The probability that you will guess the first answer correctly  =  1/2  =  0.5
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============================

Here are all the ways your answer sheet could wind up:
(R = a right answer.  W = a wrong answer.)

W W W 
W W R
W R W
W R R
R W W
R W R
R R W
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Number of possible ways to score 0 right out of 3 questions:  1 way
Number of possible ways to score 1 right out of 3 questions:  3 ways
Number of possible ways to score 2 right out of 3 questions:  3 ways
Number of possible ways to score 3 right out of 3 questions:  1 way

Statistically, if your answers are all pure guesses, 
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If you're happy with that score, great !  
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