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Lapatulllka [165]
3 years ago
13

Use the DISTRIBUTIVE PROPERTY to simplify the expression. 4(3r - 8)

Mathematics
1 answer:
Over [174]3 years ago
3 0

Answer:

12r-32

Step-by-step explanation:

Distribute the 4 between the different numbers.

3r * 4 = 12r and 8 * 4 = 32

So...you end up with 12r-32

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Does anyone know this, I have no idea, will mark brainlest
yan [13]

Answer Do your best ask teacher

Step-by-step explanation:

4 0
3 years ago
Let an be the sum of the first n positive odd integers.
sesenic [268]

Answer:

A) The first 4 terms of the sequences are: a_{1} =16, a_{2} =24, a_{3} =32 and a_{4} =40.

B) An explicit formula for this sequence can be written as: a_{n} =8*(n+1)

C) A recursive formula for this sequence can be written as:

\left \{ {{a_{1} =16} \atop {a_{n} =a_{n-1}+8}} \right.

Step-by-step explanation:

A) You can find the firs terms of this sequence simply selecting an odd integer and summing the consecutive 3 ones:

a_{n} = Odd_{n}+Odd_{n+1}+Odd_{n+2}+Odd_{n+3} (a.1)

a_{1}=1+3+5+7=16

a_{2}=3+5+7+9=24

a_{3}=5+7+9+11=32

a_{4}=7+9+11+13=40

B) Observe the sequence of odd numbers 1, 3, 5, 7, 9, 11, 13(...).

You can express this sequence as:

Odd_{n}=(2*n-1) (b.1)

If you merge the expression b.1 in a.1, you obtain the explicit formula of the sequence:

a_{n} = Odd_{n}+Odd_{n+1}+Odd_{n+2}+Odd_{n+3} (a.1)

a_{n} = (2*n-1)+((2*(n+1)-1))+((2*(n+2)-1))+((2*(n+3)-1)) (b.2)

a_{n} = 8*n+8 (b.3)

a_{n} =8*(n+1) (b.s)

C) The recursive formula has to be written considering an initial term and an N term linked with the previous term. You can see an addition of 8 between a term and the next one. So you can express each term as an addition of 8 with the previous one. Therefore, if the first term is 16:

\left \{ {{a_{1} =16} \atop {a_{n} =a_{n-1}+8}} \right. (c.s)

5 0
3 years ago
23. The nth term of a sequence is n2 + 3. Find the first 3 terms of this sequence.
Setler79 [48]
23.
assuming you meann^2+3

first term is n=1, so 1²+3=1+3=4
2nd is n=2 so 2²+3=4+3=7
3rd is n=3 so 3²+3=9+3=12

the first 3 terms are 4,7,12


24.
5th term is 5²+3=25+3=28
10th term is 10²+3=100+3=103

difference is 103-28=75
7 0
3 years ago
Please explain how to solve this :)
kotegsom [21]

Answer:

donwload ka ng photo math

tapos pagkatapos yun

Step-by-step explanation:

may sagot kana tapos may solution pa

sana makatulong salamatg

5 0
3 years ago
The reciprocal of - 6.38
Tatiana [17]

Answer:

-1/6.38

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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