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DaniilM [7]
3 years ago
7

Can somebody please answer this. I will give brainliest answer.

Mathematics
1 answer:
kolezko [41]3 years ago
8 0

Answer:

121.21 people per square mile

Step-by-step explanation:

area = 1/2(12 + 21)(14) = 231 mi²

28,000/231 = 121.21 people per square mile

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Can someone please help me
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i’m not 100% sure on these but i’m pretty sure i’m right, hope this helps !

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4 0
3 years ago
4. What is the solution to the system?<br> Solution: (_
Vladimir [108]

Answer:

(3,-2)

Step-by-step explanation:

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Hope this helps :)

6 0
3 years ago
Write an equation for the nth term of the arithmetic sequence. Then find a 30
AnnZ [28]

Answer:

The nth term is given by: a_n = -9 + 3(n-1)

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Step-by-step explanation:

Arithmetic sequence:

The nth term of an arithmetic sequence is given by:

a_n = a_1 + (n-1)d

In which a_1 is the first term and d is the common difference between terms.

-9, -6, - 3,0

This means that a_1 = -9, r = -6 - (-9) = -6 + 9 = 3. So

a_n = -9 + 3(n-1)

30th term:

a_30 = -9 + 3(30-1) = -9 + 87 = 78

The 30th term is 78.

6 0
3 years ago
15X^2+20x factor greatest common monomial
velikii [3]
Both 15 and 20 can be divided evenly by 5, so 5 is the greatest common monomial:  5(3x^2 + 4x)  or  5x(3x + 4) 
4 0
3 years ago
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melamori03 [73]

Answer:

x=±\sqrt[]{4}+9

5 0
3 years ago
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