<p>What was the roman numeral question answer? I know 1 worked, and choices 2/3 were ambiguous but i still put them because they worked but i wasnt completely sure</p>
<p>Ostrich I put no error. </p>
<p>The elephant one was no error. </p>
<p>For the Roman numerals question, why were the all correct? I was “everything will be odd” II was something like k^n and III was like 2n-1. I plugged in numbers and thought that II was false.</p>
<p>The question was “2x + 2 = root 8x + 4y - 4”</p>
<p>Square both sides and you get:</p>
<p>4x^2 + 8x + 4 = 8x + 4y - 4</p>
<p>Subtract or add like terms and you get:</p>
<p>4x^2 + 8 = 4y</p>
<p>Divide 4 from both sides and you get:</p>
<p>x^2 + 2 = y</p>
<p>Answer is x^2 - y = -2</p>
<p>The numeral one with the sequence was 1, 2 and 3</p>
<p>They should not score the roman numeral question</p>
<p>what was the elephant question</p>
<p>Roman numeral was all three. If you did it out, all numbers are in the form of 2^n(x-1) and where x is 3. So all of them were in the right forms</p>
<p>Please hope to god they wont</p>
<p>But how do you know if you can change n. I could do that too, but I couldn’t figure out if I am allowed to change n.</p>
<p>@fireperson it was “the carvings showed elephants wearing capes over their backs…”</p>
<p>You HAVE to be able to change n. That doesn’t make sense. How would you get the other numbers in the sequence then?</p>
<p>Actually, that complaint about roman numerals is valid. It really doesn’t tell you if you can change n. Although I still put all three, that was my first hesitation.</p>
<p>@chrysanthemum14 If that’s the question, then you’re rightttt </p>
<p>@Chrysanthemum14 …That is why it would be wrong -_-</p>
<p>What was wrong with the numeral one!? The answer was E). i, ii, and iii.</p>
<p>The question was if we started a sequence with 3, and each progressive term was 2x-1 where x is the term before it.</p>
<ol>
<li>every term is odd</li>
<li>the difference is always a power of n</li>
<li>every term is 2^(n)+1</li>
</ol>
<p>The roman numeral one is 200% all of the above. the question was the sequence 3, 5, 9, 17. Each term is 2*(previous term) -1. The options were:</p>
<p>I. All terms are odd
II. The difference between 2 consecutive terms is 2^n where n is positive integer.
III. Each term can be written as 2^k + 1 where k > 0 and is an integer</p>
<p>I don’t know how to prove it, but try disproving any of them. They all work</p>
<p>i still put all three, but i agree it was ambiguous because they did not tell us what n and k represented. I just inferred</p>
<p>Wait ya for the roman number question i plugged in values and 2 of them didn’t work. Also, what is this elephant question? For the parliament question i put the error was “the size of” because u cant compare US Congress to the size of British Parliament. You either compare the size of US Congress to the size of British Parliament, or US Congress to British Parliament.</p>