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Maksim231197 [3]
2 years ago
11

If x is greater than 6, then -7 is a solution true or false

Mathematics
1 answer:
Paladinen [302]2 years ago
4 0

If x > 6 then all the solutions are x\in(6,+\infty) and since -7 is not a part of such interval the answer is false.

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10. When you add the same number to both sides of an inequality, is the inequality still true? Explain how you know your stateme
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The inequality is still true! If you add a number, say 5 to both sides of the following inequality, does anything change?

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The inequality is still true. We know the statement holds for subtracting the same number because, in a way, addition and subtraction are pretty much the same operation. If I subtract 5 from both sides, I can think of it like "I add negative 5 to both sides" or something along those lines. It's kind of backwards thinking.

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Teresa is factoring this polynomial by grouping. Which common factors should be used in the next step of factoring? 10x3 3x2−20x
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? ?? Hi so that doesn’t make sense
5 0
3 years ago
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You invest a total of $5800 in two investments earning 3.5% and 5.5% simple interest. Your goal is to have a total annual intere
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The annual interest that can be earned through investment of an amount at a simple interest can be calculated through the equation,
                I  = P x (i)
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Let x be the amount deposited with 3.5% interest. With this representation, the amount deposited with 5.5% is 5800 - x. 

The linear equation that would represent the given scenario is,
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Combining like terms,
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Hence, the value that should be deposited to the 5.5% is $40000.   
4 0
3 years ago
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