Answer: The first and last options are correct
Explanation:
The recursive formula is written in terms of the previous term of the sequence. From the information given,
the Arnold's are going to save a nickel on the first day of the month and double the amount each day of the month. Thus, the recursive formula would be

where
an - 1 defines a previous term
To write the explicit formula, we would apply the formula for finding the nth term of an arithmetic sequence which is expressed as
An = ar^(n - 1)
where
a is the first term of the sequence
n is the number of terms
r is the common ratio between consecutive terms
Thus,
r = 2 because the amount is doubling each day
n = number of days
a = value of 1 nickel = $0.05
By substituting these values into the formula,
the explicit formula is
A(n) = 0.05(2)^n - 1
Answer:
5x^2 + 4x - 8 Hope this helps! I think this is right, but it's hard to tell from the problem.
Step-by-step explanation:
Answer:
The dimensions of the rectangular volleyball court are 60 ft x 30 ft
Step-by-step explanation:
Let
x ----> the length of rectangular volleyball court
y ---> the width of the rectangular volleyball court
we know that
The area of the rectangular volleyball court is equal to


so
----> equation A
-----> equation B
substitute equation B in equation A


Solve for y
Simplify

take square root both sides

<em>Find the value of x</em>

substitute the value of y

therefore
The dimensions of the rectangular volleyball court are 60 ft x 30 ft
Answer:
69
Step-by-step explanation: