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vladimir2022 [97]
3 years ago
13

Need help with 2 questions.

Mathematics
2 answers:
ad-work [718]3 years ago
4 0
The first one if D, and the other one is true
Gala2k [10]3 years ago
3 0
The first one is D
The second one is true
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Determine as a linear relation in x, y, z the plane given by the vector function F(u, v) = a + u b + v c when a = 2 i − 2 j + k,
Ostrovityanka [42]

Answer:

2x - y - 3z = 0

Step-by-step explanation:

Since the set

{i, j}  = {(1,0), (0,1)}

is a base in \mathbb{R}^2

and F is linear, then

<em>{F(1,0), F(0,1)}  </em>

would be a base of the plane generated by F.

F(1,0) = a+b = (2i-2j+k)+(i+2j+k) = 3i+2k

F(0,1) = a+c = (2i-2j+k)+(2i+j+2k) = 4i-j+3k

Now, we just have to find the equation of the plane that contains the vectors 3i+2k and 4i-j+3k

We need a normal vector which is the cross product of 3i+2k and 4i-j+3k

(3i+2k)X(4i-j+3k) = 2i-j-3k

The equation of the plane whose normal vector is 2i-j-3k and contains the point (3,0,2) (the end of the vector F(1,0)) is given by

2(x-3) -1(y-0) -3(z-2) = 0

or what is the same

2x - y - 3z = 0

3 0
4 years ago
F(x)=x2+1<br> g(x)=2x-5<br> Find f(x)-g(x)
Alona [7]

Answer:

Step-by-step explanation:

x^2 + 1 -2x + 5

x^2 - 2x + 6

6 0
3 years ago
Can anyone help me out, if you answer the question right i will give you a brainliest.
melisa1 [442]

Answer:

It's different because the experiment is more accurate as it progresses.

Step-by-step explanation:

You'll notice that the higher the numbers get in the experiment the closer it gets to your solution. The theoretical probability of flipping a coin is about 50% heads and 50% tails, but it doesn't always seem like that in an experiment. The experimental probability from your experimentation so far would be 62% of heads and 38% of tails.

4 0
3 years ago
Fine the class width ​
WITCHER [35]

Answer:

class width is 5

Step-by-step explanation:

8 0
3 years ago
How would i find the missing side
vivado [14]

Answer:

Concept: Geometry

  1. You haven't indicated which missing side, you have m and n missing
  2. So let's do M
  3. You have the angle 45
  4. Hencd you will do arcsin(45)= opp/hyp
  5. arcsin(45)=86/m
  6. Then plug that into a calculator and you have m

6 0
3 years ago
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