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faltersainse [42]
2 years ago
5

20pts and brainliest to the person who has the correct answer​

Mathematics
1 answer:
Elis [28]2 years ago
8 0
<h2>Um I think its 143 i think  im just guessing</h2>
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Find two unit vectors orthogonal to a=⟨−2,−4,−2⟩a=⟨−2,−4,−2⟩ and b=⟨−3,5,2⟩b=⟨−3,5,2⟩ Enter your answer so that the first non-ze
Levart [38]

Answer:

u₁= ⟨1/(7*√3),−5/(7*√3) ,−11/(7*√3)⟩

u₂= ⟨-1/(7*√3),5/(7*√3) ,11/(7*√3)⟩

Step-by-step explanation:

for  a=⟨−2,−4,−2⟩ and b=⟨−3,5,2⟩

a vector orthogonal to a and b can be found through the vectorial product of a and b. Thus

c= a x bc=\left[\begin{array}{ccc}i&j&k\\-2&-4&-2\\-3&5&2\end{array}\right] =  \left[\begin{array}{ccc}-4&-2\\5&2\end{array}\right]*i+\left[\begin{array}{ccc}-2&-2\\-3&2\end{array}\right]*j+\left[\begin{array}{ccc}-2&-4\\-3&5\end{array}\right]*k = 2*i  -10*j  - 22*k

then c₁=⟨2,−10,−22⟩ and c₂= - c₁= ⟨-2,10,22⟩ are orthogonal to a and b

the corresponding unit vectors are

u₁=c₁/|c₁| = ⟨2,−10,−22⟩ / √(2²+(−10)²+(−22)²) = ⟨2,−10,−22⟩/(14*√3) =  ⟨1/(7*√3),−5/(7*√3) ,−11/(7*√3)⟩

then u₂= - u₁=  ⟨-1/(7*√3),5/(7*√3) ,11/(7*√3)⟩

then the unit vectors are

u₁= ⟨1/(7*√3),−5/(7*√3) ,−11/(7*√3)⟩

u₂= ⟨-1/(7*√3),5/(7*√3) ,11/(7*√3)⟩

7 0
4 years ago
In this set of data, would the mean or median be affected more with a data point of 20? Explain.
AveGali [126]

Answer:

5 is the median

Step-by-step explanation:

The "median" is the "middle" of the set of numbers. Considering there are 13 total numbers, making it un-even, there can be an equal amount of numbers taken off of each side with a middle number remaining. That middle number will be your median..

5 0
3 years ago
Please help me out, it would mean a lot to me.
LekaFEV [45]

Answer:

What is the constant of proportionality=20

The equation is 20*2

200

(I hope I'm right)

Step-by-step explanation:

6 0
2 years ago
There are 3 yellow skittles, 2 green skittles, and 4 red skittles.
8_murik_8 [283]

Answer:

1. 4:3

2. 2:3

3. 2:9

4. 3:4

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find the gradient of the line segment between the points (-5,2) and (4,3) give your answer in the simplest form
Leokris [45]

Answer: The gradient of the line segment between the points (-5,2) and (4,3) is \dfrac{1}{9}.

Step-by-step explanation:

Formula for gradient of a line segment :

\text{Gradient}=\dfrac{\text{Difference between y-coordinates}}{\text{Difference between x-coordinates}}

Given points of the line segment: (-5,2) and (4,3)

\text{Gradient} =\dfrac{3-2}{4-(-5)}

\text{Gradient} =\dfrac{1}{4+5)}

\text{Gradient} =\dfrac{1}{9}

Therefore , the gradient of the line segment between the points (-5,2) and (4,3) is \dfrac{1}{9}.

7 0
3 years ago
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