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zaharov [31]
3 years ago
8

PLEASE ANSWER THESE QUESTIONS PLZ ILL GIVE BRAINLIEST ANSWER

Mathematics
1 answer:
gogolik [260]3 years ago
7 0
DP NOT CLICK THE LINKS
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Given that vector p=i+2j-2k and q=2i-j+2k, find two vectors m and m satisfying the condition;
Stels [109]

9514 1404 393

Answer:

  • m = j +k
  • n = 2i +k

Step-by-step explanation:

There are <em>an infinite number of possibilities</em>. Any vector whose dot-product with p is zero will be perpendicular to p.

Let m = 0i +1j +ak. Then we require ...

  m·p = 0 = 0×1 +1×2 +a(-2)   ⇒   0 = 2 -2a   ⇒   a = 1

m = 0i +1j +1k

__

Let n = 2i +0j +bk

  n·p = 0 = 2×1 +0×2 +b(-2)   ⇒   2 -2b = 0   ⇒   b = 1

n = 2i +0j +1k

6 0
3 years ago
A ′ B ′ C ′ triangle, A, prime, B, prime, C, prime is the image of △ A B C △ABCtriangle, A, B, C under a rotation about the orig
erma4kov [3.2K]

The angle of rotation of triangle ABC to A'B'C is 105°

<h3>How to illustrate the information?</h3>

It should be noted that the rotation from ABC to A'B'C is in a clockwise direction.

Point B is also on the x axis and point B' is in the second quadrant.

In this case, the angle that depicts the second quadrant is 105°.

In conclusion, the correct option is D.

The complete question is:

Triangle A’ B’ C’ is the image of A B C under a rotation about the origin, (0,0)

Determine the angle of rotation

A. -105 degrees

B. -75 degrees

C. 75 degrees

D. 105 degrees

Learn more about triangles on:

brainly.com/question/11485921

#SPJ1

8 0
2 years ago
Please help and tell me which answer on the bottom is correct. I don't know how to do math..
Illusion [34]

Answer:

875

Step-by-step explanation:

30*15=450

30*10=300

20*5=100

12.5+12.5=25

450+300+100+25=875

I worked from bottom to top

3 0
3 years ago
Read 2 more answers
Not working for me :::<br>need help<br><br>-3 &lt; 3 x -5 &lt; 4
gladu [14]
-3 < 3 x -5 < 4\\ 2
7 0
3 years ago
A number decreased by the sum of the number and seven. what is the algebraic expression?​
Aleks04 [339]
The answer would be x-(7+x)
5 0
3 years ago
Read 2 more answers
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