3 years ago

You order 8 units. You get a case missing two units. Whats in a case?

Mathematics

1 answer:

dolphi86 [110]3 years ago

5 0

6 units

Hope it helps!

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Solve this quadratic equation by completing the square.

nadya68 [22]

Answer:

$x=-3+\sqrt{27}\\ x=-3-\sqrt{27}$

Step-by-step explanation:

Let's find our C value for the quadratic equation.

$(\frac{6}{2})^{2} = 9$

That is our C. Since we added 9 to one side, we have to do the same to the other. We get:

$x^{2} +6x + 9 = 18 + 9\\x^{2} +6x + 9 = 27$

Now, lets form the left side as a binomial squared.

$(x+3)^{2} = 27$

Let's square both sides now:

$x+3 = (+/-)\sqrt{27}$

Now, we subtract 3 from both sides to isolate the variable, X:

$x= -3(+/-)\sqrt{27}$

This means that the answers are:

$x=-3+\sqrt{27}\\ x=-3-\sqrt{27}$

I do not understand your answers though. Answer A makes no sense, answer B is 221, answer C is 115, and answer D also does not make sense. If you could clarify this portion, maybe I can help you find your alphabetic answer

3 0

4 years ago

Help with Pythagorus 3D maths homework really fast please!!!!!!<br> Awarding brainliest

Blababa [14]

Answer:

x = 20 / √3 = 20√3 / 3

Step-by-step explanation:

AC² = AD² + BC² = x² + x² = 2 x²

AF² = AC² + CF² = 2 x² + x² = 3 x²

3 x² = 20² = 400

x² = 400/3

x = 20 / √3 = 20√3 / 3

6 0

3 years ago

What is the perimeter of rectangle A?

Ivan

It’s not feet is numbers
Triangle a+b+c
Rectangle 2{l+w}

8 0

3 years ago

Find the Remainder of x^2 - 5x - 22 divided by x + 3

Len [333]

x -8
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x+3 I x² -5x -22
x² +3x
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-8x -22
-8x -24
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2
the remainder is 2.

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3 years ago

One scoopnof coffe is added ton2 cups of water. How many cups of water to use for 5 scoops of coffee

kirza4 [7]

Make it into fraction
1/2 = 5/x
X= 5/2
2.5 cups of water

8 0

3 years ago