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3 years ago

Giving brainlist to whoever answers

Mathematics

1 answer:

ad-work [718]3 years ago

8 0

Answer:

Hello! answer: x = 1

Step-by-step explanation:

If the circles each represent 1 then each sode has 6 circles but the other side has 3 circles sense this is balanced equal that means x must equal 1 for them both to equal 9 on each side because 6 + 3 = 9 Hope that explains well.

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The first two terms of an arithmetic sequence are 7 and 4. Find the 7th term.

kobusy [5.1K]

EXPLANATION

If the first two terms of an arithmetic sequence are 7 and 4, then we know that an arithmetic sequence has a constant difference d and is defined by

$a_n=a_1+(n+1)d$

Check wheter the difference is constant:

Compute the differences of all the adjacent terms:

$d=a_{n+1}-a_n$

Replacing terms:

4-7 = -3

The difference between all of the adjacent terms is the same and equal to

d = -3

The first element of the sequence is

$a_1=7$ $a_n=a_1+(n+1)d$

Therefore, the nth term is computed by

d= -3

$a_n=7+\text{ (n-1)}\cdot(-3)$

Refine

d= -3 ,

$a_n=-3n+10$

Now, replacing n=7

$a_7=-3\cdot7+10\text{ = -11}$

So, the answer is -11.

8 0

1 year ago

Please help me with 7 8 9 10 and 11

Alenkinab [10]

Answer:

for number 10 it is a

Step-by-step explanation:

i don't know but i did do homework and i got number 10 right sorry.

4 0

3 years ago

Read 2 more answers

Solve for q. √3q + 2 = √5

34kurt

Answer:

$q = 0.0186$

Step-by-step explanation:

To solve for q, we initially place everything with the term q to one side of the equality, and everything without the term q to the other side of the equality.

$\sqrt{3q} + 2 = \sqrt{5}$