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Romashka-Z-Leto [24]

2 years ago

11

Students in a club are selling flowerpots to raise money each flowerpot sells for $15. Write an expression that represents the t

otal amount of money in dollars, the students raise from selling x flowerpots.

1 answer:

enot [183]2 years ago

3 0

15x = the total amount of money in $

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Show two ways of using the distributive property to find the product of 127 and 32

Dmitry [639]

127=(120+7)
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3 years ago

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Juli2301 [7.4K]

Answer:

4.

$x=\frac{2}{3} \pm \frac{1}{6}i \sqrt{158}$

Step-by-step explanation:

$18x^2-24x+87=0$

Using Quadratic Formula

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$x=\frac{-\left(-24\right)\pm \sqrt{\left(-24\right)^2-4\cdot \:18\cdot \:87}}{2\cdot \:18}$

Solving the discriminant:

$\Delta = \left(-24\right)^2-4\cdot \:18\cdot \:87\\\Delta = 576-6264\\ \Delta=-5688$

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$x= \frac{24 \pm \sqrt{5688i} }{36}$

Once $\sqrt{5688} =\sqrt{2^3\cdot \:3^2\cdot \:79}=6\sqrt{158}$

$x=\frac{24\pm6\sqrt{158}i}{36}$

Dividing the denominator and numerator by 6

$x=\frac{4\pm \sqrt{158}i}{6}$

Now rewrite it:

$x=\frac{4}{6} \pm i\frac{\sqrt{158}}{6}$

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or

$x=\frac{2}{3} \pm \frac{1}{6}i \sqrt{158}$

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3 years ago

a spool of ribbon holds 6.75 meters. A craft buys 21 spools what is the total costs if the ribbon sells for $2 per meter?

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goblinko [34]

Answer:

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The computation of the number of books in each pile is shown below:

Given that

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= 119 books ÷ 7 piles

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marin [14]

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Step-by-step explanation:

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