ABC is a straight line where BC = 3AB. OA = a, AB = b Express OC in terms of a and b.
1 answer:
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Answer:
Volume = 35185.8
Step-by-step explanation:
Recall the formula for the volume of a cone:
Where R is the radius of the cone's circular base (in your case half of 80 km,(that is 40 km)
And h stands for the height of the cone (in your case 21 km)
We replace such in the formula and calculate its final value:
We round it to the number of decimals your problem request (let's say to one decimal) and also include the cubic units:
Volume = 35185.8
Answer:
see explanation
Step-by-step explanation:
The n th term of a geometric sequence is
= a
where a is the first term and r the common ratio
Given =
and r =
, then
a =
, that is
=
=
( cross- multiply )
32a = 2048 ( divide both sides by 32 )
a = 64 ← first term
Thus the explicit formula is
= 64