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9966 [12]
3 years ago
5

Which expression is not equivalent to the other expressions?

Mathematics
1 answer:
Paul [167]3 years ago
4 0
-6(2x - 4) =  -6*(2x) -6*(-4) = -12x + 24

-(12x - 6) + 18 = -12x + 6 + 18 =  -12x + 24

-3(4x - 3) + 15  = -3*(4x) -3*(-3) + 15 = -12x + 9 + 24 = -12x + 24

-4(3x + 6) = -4*(3x) -4*(6) = -12x -24

All the expressions gave the same answer as -12x + 24, except for the last expression.

So, -4(3x + 6)  is not equivalent to the others.
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What is the point slope for of the line with. Slope 2/5 that passes through the point (-4,-7)
WITCHER [35]

The point-slope form of a line:

y-y_0=m(x-x_0)

We have:

m=\dfrac{2}{5}\\\\(-4,\ -7)\to x_0=-4,\ y_0=-7

Substitute:

y-(-7)=\dfrac{2}{5}(x-(-4))\\\\y+7=\dfrac{2}{5}(x+4)

3 0
3 years ago
Si para introducirun producto al país se pagan $225 por concepto de impuestos y dicho producto cuesta $1,200
adell [148]

Complete question :

si para introducir un producto al país se pagan $225 por concepto de impuestos y dicho producto cuesta $1,200 ¿que porcentaje se cobra por impuesto?

Responder:

18,75%

Explicación paso a paso:

Dado que:

Monto cobrado por impuestos = $ 225

Costo del producto sujeto a impuestos = $ 1200

El porcentaje del precio de costo del producto que se grava:

Sea porcentaje = x%

x% * precio de coste = importe de impuestos

0.01x * $ 1200 = $ 225

12x = 225

x = 225/12

x = 18,75

Por tanto, porcentaje de impuesto = 18,75%

8 0
3 years ago
16x^3<br> And divide <br> 10x^1
Kay [80]

Answer:

8x^3/5

Step-by-step explanation:

Evaluate the exponent

16x^3/10

Factor 2 out of 16x^3

2(8x^3)/10

Cancel the common factors

Factor 2 out of 10

2(8x^3)/2(5)

Cancel the common factor

(8x^3)/5

Rewrite the expression

8x^3/5

I hope this helps! :)

4 0
3 years ago
Which equation demonstrates the distributive property?
grin007 [14]

Answer:

c

hope this helps

6 0
3 years ago
Please help me with 1-8
lidiya [134]

Answer:

Will no explain too much in details.

The bottom rectangle has sizes 21cm*9cm, so its area is 189cm^2.

The remaining rectangle has sizes 6cm*7cm(16-9=7cm),so its area is 42cm^2.

The area of the object is 231 cm^2.

The perimeter is 21+9+16+6+(16-9)+(21-6) = 74 cm.

8 0
3 years ago
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