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WARRIOR
3 months ago
8

the cost of renting a kayak for one hour is $23. Each additional hour is 8$ more. Write an explicit formula and recursive formul

a to represent the situation.
Mathematics
2 answers:
babunello [11.8K]3 months ago
7 0

Explicit formula a_{n} =8n+15

Recursive formula \left \{ {{a_{1} =23} \atop {a_{n}=a_{n-1}+8 }} \right.

To tackle this task, we will utilize an arithmetic sequence. The rental charge for one hour of a kayak is $23, and each subsequent hour costs an additional $8. Thus, the initial term of the sequence is 23, while each further hour adds 8, resulting in the sequence:

{23, 31, 39, 47, 55,.....,n}

We can formulate a recursive equation of the type a_{n} =a_{n-1} +d, where a_{n} signifies the nth term, n represents the number of terms, and d indicates the common difference within the sequence.

The common difference of the sequence {23, 31, 39, 47, 55,.....,n}. Consequently, the first term is a_{1} =23, with the common difference being d = 8, reflecting the variation between each term.

\left \{ {{a_{1} =23} \atop {a_{n} =a_{n-1}+8 }} \right.

To express an explicit formula in the form a_{n} =a_{1} +d(n-1) where a_{n} indicates the nth term, n is the number of terms, a_{1} denotes the first term of the sequence, and d signifies the common difference within the sequence.

<pUtilizing a_{1}=23, and d = 8:

a_{n} =23+8(n-1)

a_{n} =23+8n-8

a_{n} =8n+15

Svet_ta [12.7K]3 months ago
3 0
X = 23 + 8y
X indicates the total
23 stands for the base price
8 refers to the price for each extra hour
Y denotes the number of extra hours
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Answer: Macy's pre-tax shirt price is $5.63

Step-by-step explanation:

Details:

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sale price drops by 25% every month it remains unsold.


First markdown month:

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Second markdown month:

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Macy, being an employee, enjoys a 50% discount on the current price.

11.25 * 50% = 5.625

11.25 - 5.625 = 5.625 or rounded to 5.63

Hope this helps!:)

3 0
3 months ago
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Explain why the following expression is false. |x| &lt; -4
Zina [12379]

Step-by-step explanation:

When a negative number is placed within a modulus function, the result will be positive. For instance, |-3| equals 3, |-6| equals 6, and |5| equals 5, etc.

A modulus function, expressed as |x|, is always positive unless x is zero, in which case it equals zero.

Consequently, |x| cannot be less than -4 because |x| is always non-negative. Thus, the statement is inaccurate.

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