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3 years ago

15 divided by 6 = 2 with a ? Of 3

Mathematics

1 answer:

djverab [1.8K]3 years ago

6 0

15 divided 6 is 2.5. So you have an extra '0.5' to the 2

Hope that helps!

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Answer:

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Step-by-step explanation:

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3 years ago

How to solve this problem

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The volume of a cylinder is 40 Feet cubed. Which expression represents the volume of a cone with the same base and height as the

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Read 2 more answers

What are the roots to the equation 2x² + 6x-1=0?

lys-0071 [83]

Answer:

The roots of equations are as m = $\frac{-3}{2} + \frac{\sqrt{11} }{2}$ And n = $\frac{-3}{2} - \frac{\sqrt{11} }{2}$

Step-by-step explanation:

The given quadratic equation is 2 x² + 6 x - 1 = 0

This equation is in form of a x² + b x + c = 0

Let the roots of the equation are ( m , n )

Now , sum of roots = $\frac{ - b}{a}$

And products of roots = $\frac{c}{a}$

So, m + n = $\frac{ - 6}{2}$ = - 3

And m × n = $\frac{ - 1}{2}$

Or, (m - n)² = (m + n)² - 4mn

Or, (m - n)² = (-3)² - 4 ( $\frac{ - 1}{2}$ )

Or, (m - n)² = 9 + 2 = 11

I.e m - n = $\sqrt{11}$

Again m + n = - 3 And m - n = $\sqrt{11}$

Solving this two equation

(m + n) + ( m - n) = - 3 + $\sqrt{11}$

I.e 2 m = - 3 + $\sqrt{11}$

Or, m = $\frac{-3}{2} + \frac{\sqrt{11} }{2}$

Similarly n = $\frac{-3}{2} - \frac{\sqrt{11} }{2}$

Hence the roots of equations are as m = $\frac{-3}{2} + \frac{\sqrt{11} }{2}$ And n = $\frac{-3}{2} - \frac{\sqrt{11} }{2}$ Answer

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4 years ago

Round 155.09271 to the thousands place Plzzz I need help

mamaluj [8]

Answer:

155.093

Step-by-step explanation:

(Thousands place is underlined)

155.09271

Since 7 is bigger than 5, you round the 2 to a 3

155.093

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3 years ago