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NARA [144]
3 years ago
8

Given the sequence −2,−8/3,−103,−4,−14/3,... find the recursive formula.

Mathematics
1 answer:
Alinara [238K]3 years ago
4 0

I suppose the third term should say -10/3, not -103.

Notice that

-2 = -6/3

-4 = -12/3

so that, starting with the first term <em>a</em>(1) = -6/3, the every following term is obtained by subtracting 2/3.

-2 - 2/3 = -6/3 - 2/3 = -8/3

-8/3 - 2/3 = -10/3

-10/3 - 2/3 = -12/3 = -4

and so on.

So the recursive rule is

<em>a</em>(1) = -2,

<em>a</em>(<em>n</em> + 1) = <em>a</em>(<em>n</em>) - 2/3, for <em>n</em> ≥ 1

or C.

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A book sold 33,200 copies in its first month. Suppose this represents 7.4% of the number of copies sold to date. How many copies
Marta_Voda [28]

Answer: 448648

Step-by-step explanation:

33,200 copies represent 7.4% of the total amount

-----------------------------------------------------

#1  33,200 ÷ 7.4%

- this is because how we get 33,200 by calculation is use the total amount and times 7.4% to get 33,200. So we are just working backwards. Since it was times before, then we divide after.

 33,200÷7.4%

=33,200÷0.074

≈448648 (you can't round up when the real amount is less the exact amount)

6 0
3 years ago
Read 2 more answers
Write the expression a 15 as a product of two exponents with the same base, one of
skelet666 [1.2K]

Answer:

a^{6}  a^{9} = a^{15}

Step-by-step explanation:

is this the question ///

Write the expression a^15 as a product of two exponents with the same base, one of which equals: a^6

if so ...

a^{6}  a^{9} = a^{15}

6 0
3 years ago
0.8(m-5) = 10<br> please show every step
xxTIMURxx [149]
First multiply 0.8 times m, then multiply 0.8 times -5.

This will give you 0.8m-4 = 10
Then add four to both sides to get you 0.8m =14.
Divide both sides by 0.8 to get m=17.5

Hope this helped. Good luck! :)

7 0
3 years ago
What is the value of this expression?(5+3) X (4-2)
Nikitich [7]

Answer:

16

Step-by-step explanation:

Given the following question:

(5+3)\times(4-2)

Solve using PEMDAS:

(5+3)\times(4-2)
5+3=8
8\times(4-2)
4-2=2
8\times2=16
=16

Your answer is "16."

Hope this helps.

5 0
2 years ago
Show your work in the comments below and and the answer choice
Olegator [25]

Answer:

Your answer is A.

Step-by-step explanation:

5 x 12 = 60

5 x 6 = 30 / 2 = 15

60 + 15 = 75

4 0
3 years ago
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