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tatyana61 [14]
3 years ago
6

Solve the quadratic equation x2+2x+3​

Mathematics
2 answers:
Anastaziya [24]3 years ago
8 0

Answer:

-2+ sqrt(8)i or -2-sqrt(8)i

Step-by-step explanation:

adelina 88 [10]3 years ago
3 0

Answer:

x=i\sqrt{2} -1, x=-i\sqrt{2}-1

Step-by-step explanation:

Hoping the equation is x^2+2x+3 = 0

Rewrite so I can complete the square:

x^2+2x=-3

Take the square of half of 2 and square.

x^2+2x+1=-2

(x+1)^2=-2

x + 1=\sqrt{-2}

x=i\sqrt{2} -1, x=-i\sqrt{2}-1

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AnnZ [28]

Answer:

$1,519

Step-by-step explanation:

Given that :

Balance = principal = $520

Time (t) = 6 years

Annual. Interest rate (r) = 18% = 0.18

Using the compound interest formula:

A = P(1 + r/n)^nt

n = number of times interest is applied per period ; A = final amount

Since interest is compounded monthly, n = 12

A = 520(1 + 0.18/12)^(12 * 6)

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A = 520(2.9211579)

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3 0
2 years ago
Find f(-7) if f(x) = 2x+8.<br> -6<br> 03<br> 02<br> 22
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4 0
3 years ago
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ANTONII [103]

Answer:

There are 12 male teachers.

Step-by-step explanation:

Ratio of male teachers to female teachers in a school is 1 to 5.

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