Answer:
For 2a, we are completing the square (see the image below)
To find the stationary point (2b) you change the sign of the number inside the brackets and keep the number outside the same i.e (-2, 7)
Hope this helps!
<span>The correct answer to your question is... a rational #, because w</span><span>hen you add two rational #'s, each # can be written as a rational #.
</span><span>
Reasoning:
So, adding two rational #'s like adding fractions will result in another fraction of this same form since integers are closed under + and x. Thus, adding two rational #'s produces another rational #.
By the way # means number.
</span>I hope this helps!
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They are the same in different forms
<h3>
Answer: C) x = 80</h3>
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Work Shown:
Let's cross multiply to get the following
14/20 = 56/x
14*x = 20*56
14x = 1120
x = 1120/14
x = 80
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As a way to check the answer, we can type 14/20 - 56/80 into the calculator and we should get 0. I'm taking advantage of the rule that if A = B, then A-B = 0. This trick is handy to check if two sides of any equation are equal to one another.
