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mafiozo [28]
3 years ago
9

Someone please help me!

Mathematics
1 answer:
hoa [83]3 years ago
8 0

Answer:

<h2>ΔAGB ≅ ΔCGB</h2>

Step-by-step explanation:

Look at the picture

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Frans mower rental charges a flat rate of $12 per day for a mower rental +2 dollars per hour the mower is being used. If the num
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The answer will be 12+2h
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Change the percent to its decimal equivalent
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553% is equal to 5.53

Step-by-step explanation:

To change a percent to a decimal, divide it by 100, because percent means, per one hundred.

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4 years ago
A student claims that 2i is the only imaginary root of a polynomial equation that has real coefficients. Explain the student's m
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Answer:

The Fundamental Theorem of Algebra assures that any polynomial  f(x)=0 whose degree is n ≥1 has at least one Real or Imaginary root. So by the Theorem we have infinitely solutions, including imaginary roots ≠ 2i

Step-by-step explanation:

1) This claim is mistaken.

2) The Fundamental Theorem of Algebra assures that any polynomial  f(x)=0 whose degree is n ≥1 has at least one Real or Imaginary root. So by the Theorem we have infinitely solutions, including imaginary roots ≠ 2i with real coefficients.

a_{0}x^{n}+a_{1}x^{2}+....a_{1}x+a_{0}

For example:

3) Every time a polynomial equation, like a quadratic equation which is an univariate polynomial one, has its discriminant following this rule:

\Delta < 0\\b^{2}-4*a*c

We'll have <em>n </em>different complex roots, not necessarily 2i.

For example:

Taking 3 polynomial equations with real coefficients, with

\Delta < 0

-4x^2-x-2=0 \Rightarrow S=\left \{ x'=-\frac{1}{8}-i\frac{\sqrt{31}}{8},\:x''=-\frac{1}{8}+i\frac{\sqrt{31}}{8} \right \}\\-x^2-x-8=0 \Rightarrow S=\left\{\quad x'=-\frac{1}{2}-i\frac{\sqrt{31}}{2},\:x''=-\frac{1}{2}+i\frac{\sqrt{31}}{2} \right \}\\x^2-x+30=0\Rightarrow S=\left \{ x'=\frac{1}{2}+i\frac{\sqrt{119}}{2},\:x''=\frac{1}{2}-i\frac{\sqrt{119}}{2} \right \}\\(...)

2.2) For other Polynomial equations with real coefficients we can see other complex roots ≠ 2i. In this one we have also -2i

x^5\:-\:x^4\:+\:x^3\:-\:x^2\:-\:12x\:+\:12=0 \Rightarrow S=\left \{ x_{1}=1,\:x_{2}=-\sqrt{3},\:x_{3}=\sqrt{3},\:x_{4}=2i,\:x_{5}=-2i \right \}\\

4 0
3 years ago
6) three times a number increased by four is less than -62
Irina-Kira [14]
6) 3x + 4 < - 62         x = - 23 ⇒ 3(-23) + 4 < - 62
   <u>      - 4     - 4 </u>                              -69 + 4  < - 62
    3x       < -66                                     - 65 < - 62
   <u>÷ 3          ÷3</u>
      x       < -22

7) x/-5 + 1 <u><</u> 7            x = -30 ⇒ -30/-5 + 1 <u><</u> 7
    <u>       - 1    -1</u>                                  6 + 1  <u><</u> 7
    x/-5       <u><</u> 6                                         7 <u><</u> 7
   <u> × -5         × -5</u>
    x           <u><</u> -30

8) x/3 - 2 <u>></u> -12         x = -30 ⇒ -30/3 - 2 <u>></u> -12
    x/3      <u>></u> -10                           -10 - 2  <u>></u> -12
    <u>* 3           *3</u>                                 -12  <u>></u> -12
     x        <u></u><u>></u> -30

9) -2x - 6 > -18                 x = 5 ⇒ -2(5) - 6 > -18
    <u>      +6     +6</u>                               -10 - 6 > -18
    -2x      > -12                                    -16 > -18
    <u>÷ -2         ÷ -2</u>
       x      > 6   ⇒ x < 6
*flip the inequality sign because the divisor is a negative number: This is to make the inequality true.
6 0
3 years ago
The expression 100 + 20m, gives the volume of water in Eduardo’s pool (in liters) after Eduardo spends m minutes filling his poo
Alex17521 [72]

205 liters in 5 1/4 minutes

m = 5 1/4

20 (5 1/4) = 105

100+105= 205

3 0
3 years ago
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