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tangare [24]
3 years ago
11

Please help me with this question

Mathematics
1 answer:
tatuchka [14]3 years ago
7 0
Equation A simplifies to 0 = 0. It is always true.

Equation B simplifies to 1 = -1 for a ≠ 0. It is never true.

Equation C simplifies to 2a = 0. It is true only for a = 0.

Equation D simplifies to 2a = 0. It is only true for a = 0.

The equation that is true for all values of "a" is ...
  A. Equation A
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the current value of a baseball card is 80 times its original value the baseball card is worth $36 write and solve an equation t
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X = 36/80
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3 years ago
2,700 rename numbers
bonufazy [111]
You could put it in standard form if thats what you mean. in that case its "two thousand seven hundred" or you could also do it in another form which in that case its "2000 + 700"
4 0
3 years ago
If x = 3k + 2 and y = k - 2 is a solution of linear equation 5x - 3y = 4 , then the value of k
Andrej [43]

Answer:

It is given that 5x−3y=k

Now by substituting the value of x and y in the equation

5(3)−3(4)=k

So we get

15−12=k

k=3

Therefore, the value of k is 3

Askmeanything2♡

4 0
3 years ago
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If ABC ~ DEF and the scale factor from ABC to DEF is 2, what are the lengths of , , and , respectively?
Nostrana [21]

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6 0
4 years ago
Factor completely.<br> 81-100x^2
Mandarinka [93]

Answer:

(9-10x)(9+10x) (I think this is the answer but I'm not one hundred percent sure)

Step-by-step explanation:

First, you can recognize that both numbers (-100x^2 and 81) are a difference of squares, in which means that they both can be square routed. Then, plug in the square routes of the numbers into (9-10x)(9+10x). 9 is the square route of 81 and 10 is the square route of 100. Make sure that when you put the numbers in the parenthesis that there is one negative and positive number since a negative multiplied by a positive makes a negative, hence making 100 negative. I hope that helped.

5 0
3 years ago
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