<p>@globalwolf</p>
<p>you have to understand the terminology. you are thinking of SOLIDS. the problem concerned SURFACES.</p>
<p>so… its not a circle right?</p>
<p>Was the abs value problem choice A??</p>
<p>so it’s definitely a circle. or a point, in the case of a degenerate circle with radius 0, i.e. when the surfaces are tangent</p>
<p>Why can’t the intersection of two spheres of different diameters be a sphere? If the smaller sphere is fully inside the bigger one…</p>
<p>EDIT: It was talking about spherical surfaces, not entire spheres. How does that change anything though?</p>
<p>So for the one that was F(x) = (x-1)F(x-1) how would you do that? Was it a mistake?</p>
<p>Everyone in my room was super confused by it and we all omitted</p>
<p>@tetratic: Yes, I am very aware that we are talking about two different aspects of the intersection between two spheres. >____> I don’t remember if the question specified either, but if it did then w/e.</p>
<p>@sattaker1234</p>
<p>I don’t understand how you can remember your letter choice but not your actual answer. the answer was 2x-2y.</p>
<p>@badessay writer</p>
<p>F(1.6) = (1.6-1) F(1.6-1) = .6 F(.6) = .6 x 2.7</p>
<p>because F(.6) was given to be 2.7</p>
<p>You can also get a sphere, because when you intersect two spheres you can fully envelop on in the other, making a sphere. All three are correct.</p>
<p>@thelemonisinplay</p>
<p>well I don’t think sphere was one of the answers… it had to be a point. </p>
<p>@tetratic</p>
<p>how could it be a circle? I’m confused</p>
<p>@shak360</p>
<p>it specified that the spheres were of different radius</p>
<p>@alyssa193</p>
<p><a href=“https://en.wikipedia.org/wiki/Sphere–sphere_intersection[/url]”>https://en.wikipedia.org/wiki/Sphere–sphere_intersection</a></p>
<p>F(x)=(x-1)F(x-1) and they gave us the value of F(0.4) and to find F(1.4) plug it into the equation to get F(x)=(0.4)F(0.4) and plug in values to get answers</p>
<p>Tetratic, what are you even talking about? Shak said that the smaller sphere would fit in the larger one, which clearly implies that he knows that the radii are different. Do you read?</p>
<p>I think that one was around -2.6 < x < 1.335. (Answer choice B I’m not sure?)</p>
<p>when do results come back?</p>
<p>@globalwolf</p>
<p>I do read. he said “envelop one in the other”, meaning that they intersect at every point. this can’t happen if they are of different radius.</p>
<p>Okay guys, sorry to be off-topic, but this was my first time taking an SAT/SATII, and I’m slightly confused. </p>
<p>I took Math II and Chem today.
I think I did well on chem, but horrid on math; with score choice, I do not have to worry about that, correct?</p>
<p>+, I plan to re-take Math II next year (after BC Calc), so I assume I am going to do better</p>
<p>so have we come to a consensus on the intersecting spheres problem? is it a circle and a point or a sphere, circle and a point? meh :(</p>
<p>Many colleges do not honor college board’s score choice so they will see both of the scores. However, I think they will only “use” the highest score.</p>