Answer:
need more info!
Step-by-step explanation:
Answer:
1/ N = 1 / 5 + 1/ 4 - 1/ 3 + 1/12
taking L.C.M
Then,
or, 1/N = 5 + 6 / 20 - 13+ 4 / 12
or, 1/N = 11/ 20 - 7/12
or, 1/N = 14 - 12 / 60
or, 1/N = 2 / 60
NOW,
Do cross multiplication,
60 = 2N
or, 60 / 2 = N
so, N = 30
ANS
Answer:
DE is 12
Step-by-step explanation:
all the side lengths of the first triangle are multiplied by 3 to get to the larger one so 4×3=12
Answer:
b = - 0.389
Step-by-step explanation:
38/99=b+17/22
to solve this expression we would make b the subject of the formulae
and evaluate the other parameters.
38/99=b+17/22
collect the like terms
38/99 - 17/22 = b
22( 38) - 99 (17)/ 2178 = b
836 - 1683/2178 = b
-847/2178 = b
b = - 0.389