All categories

3 years ago

What property does the following expression demonstrate? 9(3x) = (9x3)x

Mathematics

2 answers:

Kazeer [188]3 years ago

5 0

9514 1404 393

Answer:

associative property of multiplication

Step-by-step explanation:

We assume your equation is ...

9(3x) = (9·3)x

The parentheses have moved to a different portion of the product. This is allowed by the associative property of multiplication. It lets you associate parts of the product any way you like.

_____

<em>Additional comment</em>

It is not a good idea to use "x" to indicate multiplication in an expression in which "x" is a variable. There are many other ways to indicate multiplication, including using the "times" symbol (×).

Katena32 [7]3 years ago

3 0

Answer: x=0,\root(3)(3)

Step-by-step explanation: Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

Brainliest or a thank you please? :))

You might be interested in

Solve the following problem. Round the one decimal place if necssary.

dmitriy555 [2]

Cosθ = adjacent / hypotenuse

$\cos(47) = \frac{28}{x} \\ 0.68 = \frac{28}{x} \\ x = \frac{28}{0.68} \\ x = 41.1 \\ x = 41$

I hope I helped you^_^

5 0

3 years ago

Write this equation in vertex form.<br> y = x^2 -12x +20

kotegsom [21]

Answer:

$y = (x-6) ^ 2 -16$

Step-by-step explanation:

The vertex form for a quadratic equation has the following form:

$y = (x-h) ^ 2 + k$

Where the vertice of the equation is the point (h, k)

To transform the equation $y = x ^ 2 -12x +20$ in its vertex forms we must find its vertex.

Be a quadratic equation of the form:

$ax ^ 2 + bx + c$

Where a, b and c are real numbers, then the vertex of the equation will be:

$x = - \frac{b}{2a}$

For the given equation:

$b = -12\\a = 1$

Therefore the vertice is:

$x = - \frac{-12}{2(1)}\\\\x = 6$

Now we substitute x = 6 into the equation and find the value of k.

$y = (6) ^ 2 -12 (6) +20\\\\y = -16 = k$

Therefore the vertice is: (6, -16)

And the equation is:

$y = (x-6) ^ 2 -16$

8 0

3 years ago

Read 2 more answers

Solve the following system of equations by using the provided grid: y= -x + 3, y = 3/2x - 2

GenaCL600 [577]

Y = -x + 3
y = 3/2x - 2

-x + 3 = 3/2x - 2....multiply everything by 2 to get rid of the fraction
-2x + 6 = 3x - 4
-2x - 3x = -4 - 6
-5x = -10
x = -10/-5
x = 2

y = -x + 3
y = -2 + 3
y = 1

solution is (2,1)

4 0

3 years ago

Find the geometric mean between each pair of numbers..<br> 25 and 16

Diano4ka-milaya [45]

Answer:

Step-by-step explanation

√(25)(16)

4 0

3 years ago

Help with thissss please thx

Monica [59]

The perimeter is 47cm. The area would be 111cm^2. Hope this helped, could I possibly get brainliest?

5 0

4 years ago