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Setler79 [48]
3 years ago
14

The explicit rule for a sequence is given. an= 2/5 (5)^n−1

Mathematics
1 answer:
34kurt3 years ago
3 0

Step-by-step explanation:

A geometric series is:

an = a₁ (r)^(n-1)

Here:

an = 2/5 (5)^(n-1)

So a₁ = 2/5, and r = 5.  So an = 5an-1.

Your answer is correct, well done!

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So far I used a Sales Tax Calculator and I found out the sales tax would be 
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Enter Cost/Price:164 
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8 0
3 years ago
Simplify. 2u^2-2/ u^2-3u+2
aleksley [76]
2u-2u-4uequals 2u-2u+3+u+32
6 0
3 years ago
Three cards are drawn at random from a standard deck of cards, without replacement. Find the probability that the suits of the c
Evgesh-ka [11]

The probability that suits of cards are spades, hearts, and spades is 39/850 or 0.046.

According to the give question.

Three cards are drawn from a standard deck of cards without replacement.

Since,

The total number of cards in a standard deck = 52

Total number of spade cards = 13

Total number of heart cards = 13

Now,

The probabbility of getting first card as a spade card = 13/52 = 1/4

The probability of getting second card as heart card

= 13/(52 -1)     (cards are drawn without replacement)

= 13/51

The probability of getting third card as a spade card

= (13 - 1)/52 -2

= 12/50

= 6/25

Therefore, the probability that suits of the cards are spades, hearts, spades

= 1/4 × 13/51 × 6/25

= 39/850

= 0.046

Hence, the probability that suits of cards are spades, hearts, and spades is 39/850 or 0.046.

Find out more information about probability here:

brainly.com/question/11234923

#SPJ4

8 0
1 year ago
PLEASE HELP MEE
wel

Hey!

Sorry this answer is too late to help you but hopefully it will help future users...

an= 1/4 * an-1

a1= -64

What is in bold is what you type into the answer box.

I also have a pic attached.

I hope this helps you! Good luck on the test!

4 0
3 years ago
Read 2 more answers
Solve for x: -1 &lt; x + 3 &lt; 5 ​
Oxana [17]
<h3>Answer: Choice B)  -4 < x < 2</h3>

Work Shown:

-1 < x+3 < 5

-1-3 < x+3-3 < 5-3 ... subtract 3 from all sides

-4 < x < 2

7 0
3 years ago
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