Answer:
78.6
Step-by-step explanation:
Area of circle = Pi*r^2
r=5
for pi use calculator or pi=3.142
area =Pi*r2=(3.142)*5^2=(3.142)*25=78.55 = 78.6 (1 decimal place which is same with tenth)
I'm partial to solving with generating functions. Let

Multiply both sides of the recurrence by
and sum over all
.

Shift the indices and factor out powers of
as needed so that each series starts at the same index and power of
.

Now we can write each series in terms of the generating function
. Pull out the first few terms so that each series starts at the same index
.

Solve for
:

Splitting into partial fractions gives

which we can write as geometric series,


which tells us

# # #
Just to illustrate another method you could consider, you can write the second recurrence in matrix form as

By substitution, you can show that

or

Then solving the recurrence is a matter of diagonalizing the coefficient matrix, raising to the power of
, then multiplying by the column vector containing the initial values. The solution itself would be the entry in the first row of the resulting matrix.
Answer:
maybe this well help
Step-by-step explanation:
When you multiply a decimal by a power of 10, simply move the decimal place to the right as many places as there are 0s in the power of 10. When you divide a decimal by a power of 10, simply move the decimal place to the left as many places as there are 0s in the power of 10.
He would spend $27.50, because each bag costs $5.50. Multiply that by 5 and you have your answer :)
Answer:
The second answer.
Step-by-step explanation:
Tim is correct. Absolute value is just the distance away from 0. In this case, both P and Q are 3/8 away from zero, even though they have opposite signs. In fact, opposites signs of the same number will always have the same absolute value because they are the same distance from 0.
So, it is the second one.
Hope this helps!