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masha68 [24]
3 years ago
11

Negative 8 times 2/3

Mathematics
2 answers:
puteri [66]3 years ago
8 0

Answer:

-\frac{16}{3}

Step-by-step explanation:

This is simple multiplication. To make this easier to solve, let's modify the fraction so it looks like this:

-8*2*\frac{1}{3}

You could also change it to this:

\frac{-8}{1}*\frac{2}{3}

Do these look simpler? Hopefully they do!

Now, let's multiply the <em>numerators</em>. When multiplying fractions, we multiply numerators and denominators <em>separately</em>. Here, that means we could, taking both paths, do this:

\frac{1}{3}(-8*2)

=\frac{1}{3} (-16)

=\frac{-16}{3}

=-\frac{16}{3}

Or we can do this:

\frac{-8}{1} *\frac{2}{3}

=\frac{-8*2}{1*3}

=\frac{-16}{3}

=-\frac{16}{3}

But what if the denominator of one fraction has a common factor with the other number or the other fraction's numerator? We would find the common factor, and cancel it out to simplify. We could do this <em>before</em> multiplying, <em>during</em> the multiplication, or <em>after</em> multiplying.

In the case of a number times a fraction, it could also be seen as division, as fractions are essentially that: one number divided by another, except we aren't using the decimal.

I hope this helps you understand, so you don't need to ask this again! It's about 8:00 AM where I am as I'm writing this answer, so good morning and have a wonderful day!

d1i1m1o1n [39]3 years ago
5 0

Answer:

-5 1/3

Step-by-step explanation:

If you punch it into a calculator you  get 5.33 repeated, which fraction form is -5 1/3 :) hope this helps

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The foot of an extension ladder is 9 feet from a wall. The height that the ladder reaches on the wall and the length are consecu
Svetach [21]

Answer:

It depends ln how tall the wall is if you don't have a number for the wall then I cannot answer this I'm sorry

Step-by-step explanation:

7 0
3 years ago
Find vertex of: <br><br> y=(x-4)(x+8)
ki77a [65]

Answer:

(-2,-36)

Step-by-step explanation:

y=(x-4)(x+8)

<u>1) Find the zeros of the parabola</u>

The zero-product property states that any value, when multiplied by 0 will equal 0. Therefore, to make y=0, either (x-4)=0 OR (x+8)=0.

Therefore, x=4 and x=-8.

<u>2) Find the x-coordinate of the vertex</u>

To do this, we take the average of our zeros.

\frac{4+(-8)}{2} \\=\frac{-4}{2} \\=-2

Therefore, the x-coordinate of the vertex is -2.

<u>3) Find the y-coordinate of the vertex</u>

Plug the x-coordinate back into the original equation

y=(-2-4)(-2+8)\\y=(-6)(6)\\y=-36

Therefore, the y-coordinate of the vertex is -36.

Therefore, the vertex of the parabola is (-2,-36).

I hope this helps!

6 0
3 years ago
The diagram above shows a square PQUV and a regular pentagon QRSTU.<br>Find the value of x.​
Misha Larkins [42]

Answer:

Each interior angle of a pentagon equals 108 degrees.

Therefore Angle U = 108 degrees.

The angle of the square is 90 degrees.

Therefore, Angle x = 360 - 108 -90 degrees = 162 degrees!

Step-by-step explanation:

3 0
3 years ago
X^2-5x+2 x 3x^2 +2x +3
Katen [24]

Answer:

3x^4 - 13x^3 - x^2 - 11x + 6.

Step-by-step explanation:

x^2-5x+2 x 3x^2 +2x +3

= x^2(3x^2 +2x +3)  - 5x(3x^2 +2x +3) + 2(3x^2 +2x +3)

=  3x^4 + 2x^3 + 3x^2 - 15x^3 - 10x^2 - 15x + 6x^2 + 4x + 6

Adding like terms:

= 3x^4 - 13x^3 - x^2 - 11x + 6.

5 0
3 years ago
Help pls?? will give brainilest &lt;3
N76 [4]

Answer:

The y = 0.5 the x = 1

Step-by-step explanation:

The y = 0.5 the x = 1

6 0
3 years ago
Read 2 more answers
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