Coplanor lines that never intersect
Answer:
the answer is 7917.51cm^3 [OPTION A=7,922cm^3]
Step-by-step explanation:
radius=d÷2 41÷2 = 20.5, height=18cm
Volume=πr^2h÷3
=3.14×(20.5)^2×18÷3
=(3.14×20.5×20.5×18)÷3
=23752.53÷3
=7917.51cm^3
Guessing geometric
so
hmm
5 times what=3
divide both sides by 5
what=3/5
what=0.6
each term is multiplied by 0.6
so
1.08 times 0.6=0.648
0.648*0.6=0.3888
the next 2 terms are 0.648 and 0.3888
Answer:
the second one
Step-by-step explanation:
i did it in my head and double checked :)
In the first series, the summation applies to the whole (2n+3) inside
the parentheses, so the 3 gets summed up 5 times.
But in the second one, the summation only applies to the 2n , so
the 3 is only added after the summation is finished.
The difference between five 3s the first time and one 3 the second time
is your 12 .
