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12335555cvusd
11.04.2020 •
Mathematics
In a certain country the true probability of a baby girl is 0.466. Among the next five randomly selected births in the country, what is the probability that at least one of them is a boy
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Ответ:
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Step-by-step explanation:
Ответ:
58° and 122° .
Explanation:
Two supplementary angles:
Angle 1: "x:
Angle 2: "(6 + 2x)"
All supplementary angles, by definition, add up to 180 degrees, so given that the 2 (two) angles are supplementary:
(x) + (6 + 2x) = 180 ; Find "x" and "(6 + 2x)" .
x + 6 + 2x = 180 ;
3x + 6 = 180 ;
Subtract "6" from each side of the equation ;
3x + 6 − 6 = 180 − 6 ;
3x = 174 ;
Divide each side of the equation by "3" ;
to isolate "x" on one side of the equation ; and to solve for "x" ;
3x / 3 = 172 / 3 ;
x = 58 ;
So:
Angle 1: "x" : x = 58 .
Angle 2: "(6 + 2x)" = " 6 + 2(58) = 122 .
122 + 58 =? 180 ? Yes!
So, the measurements of the 2 (TWO) supplementary angles are:
58° and 122° .