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mem8163
11.12.2020 •
Mathematics
How many different possible outcomes are there? Please help!
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Ответ:
Explanation:
6 sides on a dice, 2 sides to a coin, 4 sections on the circle spinner: 6x2x4
Ответ:
your triangle is
CD=15=a
CE=?=b
DE=CE+3=b+3=c
and C=90°
-> insert those values, with c substituted with b+3 to remove c
c^2=a^2+b^2-2*a*b*cos(C)
(b+3)^2=15^2+b^2-2*15*b*cos(90)
cos(90)=0->
(b+3)^2=15^2+b^2
b^2+2*3*b+3^2=225+b^2
6b+9=225
6b=216
b=36=CE
DE=CE+3=36+3=39