Answer:
x = 59,53445508
Tan(x) = 34/20
Step-by-step explanation:
Answer:
adding by 5
Step-by-step explanation:
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<span>3x+4=y+5, then y+5=3x+4
It is called: reflexive property
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<span>x = y and y = 10, then x = 10
It is called: equality substitution property
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Answer:81030m
Step-by-step explanation:1km=1000m, 81km=81000+30=81030m
use cross products
(3r+6) *2 = 9*(2r-4)
6r+12 = 18r-36 distribute
12 = 12 r -36 subtract 6r from each side
48 = 12r add 36 to each side
4=r divide by 12