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larisa86 [58]
3 years ago
7

Ronald and time both did there laundry today. Ronald does laundry every 6 days Tim does laundry every 9 days. How many days will

be until Ronald and Tim both do laundry on the same day again?

Mathematics
1 answer:
Vsevolod [243]3 years ago
4 0

Answer:

18 days

Step-by-step explanation:

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Which equation has the solutions x = startfraction negative 3 plus-or-minus startroot 3 endroot i over 2 endfraction? 2x2 6x 9 =
Gennadij [26K]

The quadratic equation which matches given solution is x² + 3x + 3 = 0. Then the correct option is C.

<h3>What is a quadratic equation?</h3>

It is a polynomial that is equal to zero. Polynomial of variable power 2, 1, and 0 terms are there. Any equation having one term in which the power of the variable is a maximum of 2 then it is called a quadratic equation.

We know that the formula

\rm x = \dfrac{-b\pm \sqrt{b^2-4ac}}{2a}

The solutions are given below.

\rm x = \dfrac{-3 \pm \sqrt3 \iota }{2}

Then

1)  2x² + 6x + 9 = 0, the zeroes of the equation will be

\rm x = \dfrac{-6\pm 6\iota}{4}\\\\x = \dfrac{-3\pm 3 \iota}{2}

2)  x² + 3x + 12 = 0, the zeroes of the equation will be

\rm x = \dfrac{-3\pm \sqrt{39}\iota}{2}

3)  x² + 3x + 3 = 0, the zeroes of the equation will be

\rm x = \dfrac{-3\pm \sqrt3\iota}{2}

4)  2x² + 6x + 3 = 0, the zeroes of the equation will be

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More about the quadratic equation link is given below.

brainly.com/question/2263981

4 0
2 years ago
Plz no wrong answers <br> Find the next number in the pattern.<br><br> 9, 11, 15, 21, 29, 39, __
Maurinko [17]
Its 51, the numbers add 2 each time so 9 to 11 is 2 then you add 2 more for the next so 11 to 15 is 4 and so on
4 0
3 years ago
Guided Practice
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Answer:

A.

1.125%; 0.375%

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strojnjashka [21]

Answer:

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