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lesantik [10]
3 years ago
7

Parallel, intersecting or skew?

Mathematics
1 answer:
const2013 [10]3 years ago
7 0

Two lines are:

  • Parallel if they don't intersect and lie on the same plane
  • Intersecting if...well, they intersect at one point
  • Skew if they don't intersect and they lie on two different planes

So, we have:

  • AB and BC intersect at point B
  • AE and BF don't intersect, but both lie on the plane AEFB
  • EF and AD don't intersect and don't lie on a common plane
  • ABC and ABF intersect on segment AB
  • AED and BFC are parallel (they're both perpendicular to plane ABC)
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9.5 less than a number n equals 27
LuckyWell [14K]

Answer:

convert 9.5

n-9=27

Step-by-step explanation:

I converted it for you.

7 0
3 years ago
Is 81/4 considered a rational number
maks197457 [2]

Answer:

No

Step-by-step explanation:

A rational number is a number that can be expressed as a fraction p/q where p and q are integers and q!=0. A rational number p/q is said to have numerator p and denominator q. Numbers that are not rational are called irrational numbers. The real line consists of the union of the rational and irrational numbers. The set of rational numbers is of measure zero on the real line, so it is "small" compared to the irrationals and the continuum.

The set of all rational numbers is referred to as the "rationals," and forms a field that is denoted Q. Here, the symbol  Q derives from the German word Quotient, which can be translated as "ratio," and first appeared in Bourbaki's Algèbre (reprinted as Bourbaki 1998, p. 671).

Any rational number is trivially also an algebraic number.

Examples of rational numbers include -7, 0, 1, 1/2, 22/7, 12345/67, and so on. Farey sequences provide a way of systematically enumerating all rational numbers.

The set of rational numbers is denoted Rationals in the Wolfram Language, and a number  x can be tested to see if it is rational using the command Element[x, Rationals].

The elementary algebraic operations for combining rational numbers are exactly the same as for combining fractions.

It is always possible to find another rational number between any two members of the set of rationals. Therefore, rather counterintuitively, the rational numbers are a continuous set, but at the same time countable.

8 0
3 years ago
Felipe has 28 shirts to fold. Let N be the number of shirts he would have left to fold after folding F of them.
Debora [2.8K]
Ok let’s say he folds N=14 so F would be the other q4
8 0
3 years ago
Two sides and an angle​ (ssa) of a triangle are given. determine whether the given measurements produce one​ triangle, two​ tria
Setler [38]
These are a huge pain.  First set up your initial triangle with A and B as your base angles and C as your vertex angle.  Now drop an altitude and call it h.  You need to solve for h.  Use sin 56 = h/13 to get that h = 10.8.  The rule is that if the side length of a is greater than the height but less than the side length of b, you have 2 triangles.  h<a<b --> 10.8<12<13.  Those are true statements so we have 2 triangles.  Side a is the side that swings, this is the one we "move", forming the second triangle.  First we have to solve the first triangle using the Law of Sines, then we can solve the second.  \frac{sin56}{12} = \frac{sinB}{13} to get that angle B is 64 degrees.  Now find C: 180-56-64=60.  And now for side c: \frac{sin56}{12} = \frac{sin60}{c} and c=12.5.  That's your first triangle.  In the second triangle, side a is the swinging side and that length doesn't change.  Neither does the angle measure.  Angle B has a supplement of 180-64 which is 116.  So the new angle B in the second triangle is 116, but the length of b doesn't change, either.  I'll show you how you know you're right about that in just a sec.  The only angle AND side that both change are C and c.  If our new triangle has angles 56 and 116, then C has to be 8 degrees. Using the Law of Sines again, we can solve for c:\frac{sin8}{c} = \frac{sin56}{12} and c = 2.0.  We can look at this new triangle and determine the side measures are correct because the longest side will always be across from the largest angle, and the shortest side will always be across from the smallest angle.  The new angle B is 116, which is across from the longest side of 13.  These are hard.  Ugh.

8 0
3 years ago
Please answer and give reasoning. might give brainliest.
Digiron [165]
I think the answer is A but don’t count me on it
7 0
3 years ago
Read 2 more answers
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