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Lorico [155]
3 years ago
13

Write a recursive formula for the explicit formula.

Mathematics
1 answer:
Setler79 [48]3 years ago
5 0

Answer: A

Step-by-step explanation:

A_n=9+(n-1)*(-4)\\\\A_1=9+(1-1)*(-1)=9+0=9\\\\A_{n-1}=9+((n-1)-1)*(-4)\\\\A_n-A_{n-1}=9+(n-1)*(-4)-(9+(n-2)*(-4))=-4n+4+4n-8=-4\\\\\boxed{A_n=A_{n-1}-4}\\\\\\Answer\ A

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7%

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3 years ago
What is the value of x in the equation 3(4x-) - 2x+1=3 - (3x-6)?​
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Step-by-step explanation:

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3 years ago
A game involves spinning this spinner. What is the probability of the pointer landing on Y ?
IRISSAK [1]
Here are the steps to answer this question: 

1. Find the denominator. Since there is 8 possible outcomes, our denominator will be 8.

2. Find the numerator. To do this we need to find out of all the 8 possible outcomes, how many are them are y. Since its only 1 y, the numerator will be 1.

3. Now all we have to do now is make our fraction. The 8 possible outcomes given, only one of them has y which means that our fraction will be 1/8.

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6 0
4 years ago
lisa has 4 hours to study. she spends half her time on history, a fourth of the leftover time on chemistry and the rest on algeb
loris [4]

Answer:

I’m not sure what the question is since you are just giving me the information, but I’m gonna tell you this:

History >> 2 hrs

Chem >> 30 mins

Alg 2 >> 1 hr 30 mins

Hope this helps!

__________________________________

Step-by-step explanation:

4 hours << total

Half her time on history>>4/2>>2 hrs on history

Leftover time>>4-2=2 hrs left

A fourth of leftover time on chem>>2hrs/4 = 30 mins on chem

What’s left? 2hrs - 30 mins= 1hr and 30 mins << leftover <<alg 2

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I need more information!!
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4 years ago
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