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Amiraneli [1.4K]
3 years ago
9

What are the coordinates of the root of the equation x^2+4x+3=0

Mathematics
1 answer:
Alla [95]3 years ago
3 0

Answer:

(- 3, 0) and (- 1, 0)

Step-by-step explanation:

Given

x² + 4x + 3 = 0 ← in standard form

(x + 1)x + 3) = 0 ← in factored form

Equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

x + 3 = 0 ⇒ x = - 3

coordinates of the roots are (- 3, 0) and (- 1, 0)

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What is the eighth term of the arithmetic sequence? An=<br> 10n – 14?
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Answer:

A8 = 66 [8th term]

Step-by-step explanation:

Given the explicit arithmetic sequence An = -14 + 10n → -4 + 10(n-1)

To find the 8th term. An nth term is where n is n in the sequence. So substitute 8 for n, and simplify.

So A8 = -4 + 10(8-1) → -4 + 10(7) → -4 + 70 → 70 - 4 → 66.

3 0
2 years ago
The population of a town can be modeled by P= 22,000 + 125t, where P represents the population and the t represents the number o
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Given that the population can be modeled by P=22000+125t, to get the number of years after which the population will be 26000, we proceed as follows:
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7 0
2 years ago
Find the percent of increase from 15 to 20
ANEK [815]
I think it might be 25%
8 0
2 years ago
Read 2 more answers
How to solve: 52 is 65% of what number?
Liula [17]
Let, that number = x
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Hope this helps!
3 0
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Practice: Organizing Information
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B^n / b^m = b^(n - m)

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