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Brilliant_brown [7]
4 years ago
13

How many solutions does this system have -3x+6y=10 -3x+6y= -4

Mathematics
2 answers:
Lana71 [14]4 years ago
3 0
0 because if u subtract the equations you get 0x + 0y = 14 which is not possible
Dennis_Churaev [7]4 years ago
3 0
-3x+6y=-4
-3x+6y=10

0x+0y=14

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Which of the following is the product
choli [55]

Answer:

  \text{\bf{A.}}\quad\dfrac{3x^2}{x^2-6x-7}

Step-by-step explanation:

As with multiplying any rational expressions, the numerator of the result is the product of the numerators, and the denominator of the result is the product of the denominators.

\dfrac{3x}{x+1}\cdot\dfrac{x}{x-7}=\dfrac{(3x)(x)}{(x+1)(x-7)}=\dfrac{3x^2}{x^2-6x-7}

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The denominator product is found using the distributive property. Each of the terms of one factor is multiplied by the other factor.

(x+1)(x-7)=x(x-7)+1(x-7)\\\\=x^2-7x+1x-7=x^2-6x-7

8 0
4 years ago
Can someone please give me a good explanation of how to work this out! 15 points for a good answer.
Leya [2.2K]
  • Answer:

<em>= 26,(6)</em>

<em>≈ 26,7</em>

  • Step-by-step explanation:

<em>C = 5/9(F - 32)</em>

<em>= 5/9(80 - 32)</em>

<em>= 5/9(48)</em>

<em>= 5×48/9</em>

<em>= 240/9</em>

<em>= 26,(6)</em>

<em>≈ 26,7</em>

7 0
3 years ago
Read 2 more answers
Find the quotient.<br><br> 48j 5 k 2 ÷ (-3j 3 k)<br><br> A) -16j2k<br> B) -16j3k2<br> C) -16j3k
posledela

For this case we must find the quotient of the following expression:

\frac {48 * j ^ 5 * k ^ 2} {- 3 * j ^ 3 * k} =

We have to:

\frac {48} {- 3} = - 16

By definition of power properties we have:

\frac {a ^ m} {a ^ n} = a ^ {m-n}

So so:

\frac {48 * j ^ 5 * k ^ 2} {- 3 * j ^ 3 * k} = - 16 * j ^ {5-3} * k^{2-1}=-16*j^2*k

Answer:

Option A

3 0
3 years ago
Read 2 more answers
Dylan works out and burns 10 calories per minute swimming and 7 calories per minute biking. He wants to burn a minimum of 600 ca
Inessa [10]

Answer:

46,20

Step-by-step explanation:

5 0
4 years ago
Please help!!
Viefleur [7K]

Answer:

  see below

Step-by-step explanation:

The figure below shows the selections I would make.

__

You can choose "polygon similarity postulate" for the second blank based on that step's similarity to the one two steps down from it.

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Strictly speaking, the distributive property is a property of multiplication over addition. It is not a property of equality.

8 0
4 years ago
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