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Zina [86]
3 years ago
5

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=7a_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.

So

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

\sqrt{3q} = \sqrt{5} - 2

We find the square of both sides of the equation. So

(\sqrt{3q})^{2} = (\sqrt{5} - 2)^{2}

3q = 0.0557

q = \frac{0.0557}{3}

q = 0.0186

8 0
4 years ago
Need to know the answer to this again
Tasya [4]
R = dt
/d    /d
R/d = t

I think again
4 0
3 years ago
What fraction of an hour is 18 minutes.
Nuetrik [128]
60 mins in an hour
18/60 is the fraction
3/10 is the simplest form (dividing by 6)
5 0
3 years ago
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