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noname [10]
3 years ago
12

Please be quick, i need this as soon as possible!

Mathematics
2 answers:
dalvyx [7]3 years ago
7 0

Answer:

I’m pretty sure the answer is a

Step-by-step explanation:

nikitadnepr [17]3 years ago
3 0

Answer:

its -1.5 and you use answer

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A partial sum of an arithmetic sequence is given. Find the sum.
Nezavi [6.7K]

Answer:

72.3

Step-by-step explanation:

Given that:

The arithmetic sequence:

\sum \limits ^{14}_{k=0} (3 + 0.26k)

The first term of the sequence a_0 = 3 since k = 0

i.e (3 + 0.26(0)) = 3

The last term of the sequence a_{14} = 6.64

i.e (3+ 0.26(14)

= (3 + 3.64)

= 6.64

Total no of terms = 15 i.e from 0 to 14

∴

The partial sum of the arithmetic sequence = \dfrac{Total \ no \ of \ terms }{2}  \times (a_o+a_{15})}

=\dfrac{15 }{2}  \times (3+6.64)}

= 72.3

3 0
3 years ago
-3/4 plus -8/9
Vinil7 [7]

Answer:

-3/4 -8/9

take LCM

<u>-3*9-8*4</u>

    36

<u>-27 -32</u>

  36

-59/36

Step-by-step explanation:

3 0
2 years ago
A refund of $3.15 on a $8.64 bill
Varvara68 [4.7K]

8.64 - 3.15 = $5.49 if this is what you are asking

5 0
3 years ago
Read 2 more answers
What are 6 whole numbers -3.5 and 5.5
Blababa [14]

Answer:

This is    a long    long title      restart

3 0
3 years ago
Rename 1/5 and 9/10 using the least common denominator
skad [1K]

Answer:

2/10

Step-by-step explanation:

you have to match the bottom number on both fractions then do what ever you did to the top number

so with this to get the 5 to a 10 you have to times it by 2

so you do the same to the 1

3 0
3 years ago
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