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In-s [12.5K]
3 years ago
11

Which expression defines the arithmetic series 1+3+5+... for seven terms

Mathematics
2 answers:
lutik1710 [3]3 years ago
8 0
1+3+5+7+9+11+13+15+17+19 is the answer. Hopefully this helped!! :)
nydimaria [60]3 years ago
3 0

Answer: The expression for arithmetic series for seven terms is given by

\sum_{n=1}^{n=7}(2n-1)

Step-by-step explanation:

Since we have given that

1+3+5+..................

Here, a = 1

d= common difference = a₂-a₁=3-1=2

n = 7

We need to write the arithmetic series for seven terms:

\sum_{n=1}^{n=7}(2n-1)

Hence, the expression for arithmetic series for seven terms is given by

\sum_{n=1}^{n=7}(2n-1)

You might be interested in
Simplify this rational expression. 2x^2+5x+3/2x^2-x-3
Murljashka [212]

Answer:

2x+3/2x-3

Step-by-step explanation:

firstly we make two steps to simplify this question.

1st step: simplify 2x^{2} +5x+3

to simplify this we use factorization

2x^{2} +2x+3x+3

2x(x+1) +3(x+1)

(2x+3) (x+1)        .....(1)

2nd step:simplify 2x^{2} -x-3

2x^{2} +2x-3x-3

2x(x+1)-3(x+1)

(2x-3)(x+1)          .....(2)

now dividing (1) and  (2), we get the answer

2x+3/2x-3

5 0
3 years ago
Jose has scored 562 points on his math tests so far this semester he must score atleast 650 points write and solve an inequality
solniwko [45]
562 + X >= 650
subtract 562 from both sides
X >= 88
5 0
3 years ago
Read 2 more answers
Algebra
kari74 [83]

Answer:

12

Step-by-step explanation:

3 0
4 years ago
Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .
Allisa [31]

Answer:

We divided the figure into 1 triangle and 2 rectangles.

Adding up the area of them, we get the total area:

A = 14 x (10 + 8 + 12 - 16)/2 + 8 x 5 + 6 x (12 + 8)

   = 258 (yd2)

Hope this helps!

:)

5 0
3 years ago
A.Pictograph
guajiro [1.7K]

..Answer:

Step-by-step explanation:

...

3 0
3 years ago
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