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If (x + 8) is a factor of f(x), which of the following must be true?
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Gauss-Jordan Elimination Calculator – To solve a system of linear equations using Gauss-Jordan elimination you need to do the following steps. Set an augmented matrix. In fact Gauss-Jordan elimination algorithm is divided into forward elimination and back substitution.If |x| = -x and x≠0, then x < 0, so a and b are false while there is not sufficient information for c to be true.Answer by [email protected](530) (Show Source): You can put this solution on YOUR website! x^2 – x – 20 —-(1) =x^2 – 5x+4x – 20 (splitting the middle term (-x) into two terms so that their sum is (-x) and their product is the product of the square term and the…
if |x|=-x and x0, which of the following must be true? – Scoring well on GMAT Reading Comprehension is a critical factor for nailing a perfect score. Learn to implement the FIRE strategy with Scoreleap to buttress your Verbal Notice that we are asked to find which of the options MUST be true, not COULD be true.In any question asking what must be true, you should try to imagine scenarios in which it isn't true. I'd start with the simplest looking answers and save the It obviously could be true. But let's not settle for that. What if x was a large negative value and y a small positive value? For example, x = -10 and y…Start by trying this out with a few odd functions that you know of, functions like f(x) = x. You'll quickly eliminate one of the choices this way. As for the other two, it's tough to find any odd function to show that they're false, so it might be that they are true. How can you be sure though?
SOLUTION: Which of the following is a factor of the… – If (x + k) is a factor of f(x), which of the following must be true? According to the Rational Root Theorem, which could be a factor of the polynomial f(x) = 60×4 + 86×3 – 46×2 – 43x + 8?The question asks us which answer choices must be an even integer , so it likely tests our Integers math skill. We want to know which answer choice MUST be even. Looking at the answer choices, we have addition, multiplication, and subtraction all throughout.The common factor of the given expressions has to be determined. The common factor is (x – 3). Approved by eNotes Editorial Team.
Bolt Head Markings: What do they mean? | Fasteners 101 – Welcome back to Albany County Fasteners – Fasteners 101.
I'm Bob and today we're gonna talk about markings on heads. I'm gonna teach you about the different markings and what they mean, but before we get started, please Subscribe, Like, Share our videos and hit the bell so you're notified when I come out with a new video. So let's get started. All right, I have a bunch of bolts here and I just wanted to go through the markings on these bolts so you understand them when you read them. Some of the markings on here will indicate that it's a grade 8, grade 5, grade 2, standard alloy, 316 stainless, or 18-8 stainless. So I'm gonna show you a couple of heads. First, I'm going to show you this piece of paper here which basically shows you the standard markings, according to IFI requirements, and
when you look at this you can see that some bolt's heads have absolutely no
markings, some have strikes on them, and then some have like a number and a
letter on it, like a b7. I'm gonna just go through this right now and show you a few heads with the markings and what they mean. Okay, so this here has no markings on it. Only marking that it does have is a manufacturer's marking. So how do you tell the difference? Typically, you'll see initials on there, this is an lb okay? That's a manufacturer's marking, whereas, if you took this one here, which has no markings, that would be a standard grade 2 bolt. Just for your information. On this one we have three slashes and typically three slashes is going to be grade 5. You see the JH there? That's a manufacturer's marking. So you have two different types of marks here. You have a manufacturer's mark to them. So if someone questions this bolt, should it fail, the manufacturer knows right away when he looks at it if it's his bolt. The three slashes that you see on this head, that indicates that it's a grade 5 bolt. This is a great 8 bolt. Again you see JDF on that bolt on the top. Those initials again are manufacturers marking to indicate that this is their bolt and then you see 1, 2, 3, 4, 5, 6 slashes indicating it's a grade 8. If it had no manufacturers marking, you would just see those six slashes and that would indicate to you that you have a grade eight bolt. And the reason why you're looking for these? So when you buy bolts, you want to make sure that you have the correct bolt for your application. In cars, you don't want to use a grade two for certain applications such as, suspension, tying in your front arms, it's not made for that. You typically want to go for a grade 5 or a grade 8 depending on what the manufacturer recommends and that's, you know, just talking about different applications. This bolt here which is a hot dip galvanized alloy bolt. It has, again, the manufacturers markings: the XYLX and then it says 307A. 307A is the indication of the strength of the bolt. Basically, this is equal to like a carriage bolt strength, a grade 2 or better, a little bit better than a grade 2, but standard alloy. These are not heat treated. When you're dealing with grade 8, these are through-and-through heated bolts so they're treated for strength. Grade 5 are partially treated. On to the next one, you can see a THE at the bottom. This is a stainless bolt. That's a manufacturer's mark and
you will see here S30400. That's 304 stainless steel. That's what
that's telling me. So when I read a stainless, stainless does not come with slashes. They come with an actual marking of the level of stainless. This one here you'll see the manufacturers marking ABF, I'm sorry, ABP and then you'll see S304. The S stands for stainless and the 30400 is the marking for stainless steel and those markings that you're seeing on these bolts are
standard to IFI recommendations which are standardized throughout the industry. This one here, this is an S316, so this is a higher grade stainless steel. You can see here that it says S-3-1-6-0-0 and at the bottom you see the manufacturers marking again THE. That's the manufacturer that made the bolt and the last one: this is 316 stainless. In this situation it also has another
manufacturers marking on it: F-5-9-3-H. You can see that there, then it has like
a logo punched into the head. That again, is a manufacturer's marking. So there you go. I just wanted to show you how to read
these things so you understand them. So when you're looking at them and a lot of you car guys want to grind these things off, but before you grind them off know
what you bought, so you understand what's supposed to be in the box when you
receive it. Thanks for watching. There you go
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