Answer:
x=12
Step-by-step explanation:
Both these angles are *supplementary* to each other, this means that (10x-20) and (6x+8) will both equal 180 degrees.
1. Add 10x - 20 and 6x + 8 together
By adding them together, you get 16x - 12
2. Since both of them added together would also equal 180, this means that 16x - 12 = 180
3. Use the additive inverse property and add 12 to both sides. This gives you 16x = 192
4. In order to isolate x, divide 16 on both sides.
192/16 = 12
Therefore, x is 12
Answer:
6,162.50 JA
Step-by-step explanation:
Is this true?
72.50x80= 6,162.50 JA
Answer:
Step-by-step explanation:
Starting at sea level, a submarine descended at a constant rate to a depth of −4/5 mile relative to sea level in 3 minutes.
Total time = 3 minutes
We need to find what was the submarine's depth relative to sea level after the first minute,
Via the generating function method, let
Then take the recurrence,
multiply everything by
and sum over all
:
Re-index the sums or add/remove terms as needed in order to be able to express them in terms of
:
So the recurrence relation is transformed to
For appropriate values of
, we can express the RHS in terms of geometric power series:
which tells us that