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Katena32 [7]
3 years ago
8

Which is the correct way to model the equation -X+8 = (X+(-8) using algebra tiles?

Mathematics
2 answers:
kari74 [83]3 years ago
5 0

Answer:

-x+8=7\cdot{x}-8

Step-by-step explanation:

In order to have both sides equal to each we must have terms that cancel out:.

First scenario:

x+8=7\cdot{x}+8

Second scenario

8\cdot{x}=7\cdot{x}-8

Third scenario

-x+8=7\cdot{x}-8

Fourth scenario

8\cdot{x}-1=7-8\cdot{x}

The answer is the third scenario because it gives an answer of x=8 when solved, which satisfies the model

Lilit [14]3 years ago
3 0

Answer:

1 negative x tile and 8 positive unit tile on the left. 7 positive x tiles and 8 negative units on the right side

Step-by-step explanation:

i think this is the answered because if you just look on the left side then you can tell you need a negative one and it is connected to an x.

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Quadrilateral ABCD is inscribed in this circle.
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A survey is made to determine the number of households having electric appliances in a certain city. It is found that 75% have r
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Answer:

The probability that a household has at least one of these appliances is 0.95

Step-by-step explanation:

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Probability of households having at least one of the appliance can be calculated using the rule:

P(at least one of the three) = P(R) +P(I) + P(T) - P(I∩R) - P(R∩T) - P(I∩T) + P(I∩R∩T)

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The probability that a household has at least one of these appliances is 0.95

3 0
3 years ago
Which of the following is the reciprocal of x2 – 2x – 8?
Ann [662]
Hi again

x² - 2x - 8
Factor
= (x + 2)(x -4)
Answer : A is the correct option.


If you wanna check if A is the right answer, I will solve it for you and it will you give you the exact answer which will be x² - 2x - 8
(x+2)(x-4)
Distribute
(x)(x) + (x)(-4)+(2)(x)+(2)(-4)
= x² - 4x + 2x - 8
= x² - 2x - 8
Here it is, we find the exam answer.

Thus, (x+2)(x-4) is the reciprocal of x² -2x - 8


I hope that's help !
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