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3 years ago

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 a(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

a(1) = -2,

a(n + 1) = a(n) - 2/3, for n ≥ 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

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#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%

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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 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:

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.