Each year on his birthday Tim’s grandmother deposits $20 into a “birthday account� that earns an annual interest rate of 10%. The year’s interest is added to the account at the same time as that year’s deposit. (a) Let a n denote the amount in the savings account after n years with a 0 = 20 (dollars) the very first deposit on the day of Tim’s birth. Find a recursion formula for a n + 1 . (Assume that no money is ever withdrawn from the account.) (b) Use the formula from part (a) to determine how much money will be in the account when Tim is 40 years old.
Each year on his birthday Tim’s grandmother deposits $20 into a “birthday account� that earns an annual interest rate of 10%. The year’s interest is added to the account at the same time as that year’s deposit. (a) Let a n denote the amount in the savings account after n years with a 0 = 20 (dollars) the very first deposit on the day of Tim’s birth. Find a recursion formula for a n + 1 . (Assume that no money is ever withdrawn from the account.) (b) Use the formula from part (a) to determine how much money will be in the account when Tim is 40 years old.
Each year on his birthday Tim’s grandmother deposits
$20
into a “birthday account� that earns an annual interest rate of 10%. The year’s interest is added to the account at the same time as that year’s deposit.
(a) Let
a
n
denote the amount in the savings account after n years with
a
0
=
20
(dollars) the very first deposit on the day of Tim’s birth. Find a recursion formula for
a
n
+
1
.
(Assume that no money is ever withdrawn from the account.)
(b) Use the formula from part (a) to determine how much money will be in the account when Tim is 40 years old.
Robbie
Bearing Word Problems
Angles
name:
Jocelyn
date: 1/18
8K
2. A Delta airplane and an SouthWest airplane take off from an airport
at the same time. The bearing from the airport to the Delta plane is
23° and the bearing to the SouthWest plane is 152°. Two hours later
the Delta plane is 1,103 miles from the airport and the SouthWest
plane is 1,156 miles from the airport. What is the distance between the
two planes? What is the bearing from the Delta plane to the SouthWest
plane? What is the bearing to the Delta plane from the SouthWest
plane?
Delta
y
SW
Angles
ThreeFourthsMe MATH
2
Find the derivative of the function.
m(t) = -4t (6t7 - 1)6
Find the derivative of the function.
y= (8x²-6x²+3)4
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