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ElenaW [278]
2 years ago
8

How do I do this problem?

Mathematics
2 answers:
lions [1.4K]2 years ago
5 0

Answer:

hey you can use scan and search

hram777 [196]2 years ago
3 0

Answer:

I got : 0.42264973

Step-by-step explanation:

1/ -√3 + 1

-√3 = -1.73 ( 2 decimal place )

1/ -1.73 + 1

and found the answer

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(1) Let {v1,v2,v3} be a set of vectors in Rn . If u is Span {v1,v2,v3}, show that 3u is in Span {v1,v2,v3}.
Evgesh-ka [11]

Answer:

(1)

Multiplying by 3 both sides of the equality you get that

3u = 3c_1v_1+3c_2v_2+3c_3v_3

3u  is in the Span of the vectors \{v_1,v_2,v_3\}.

(2)

That's not true, consider the following counter example.

v_1 = (0,0,0,1)\\v_2 = (0,0,1,0)\\v_3 = (0,1,0,0)\\v_4 = (1,0,0,0)\\u = (0,1,1,1)

u is a linear combination of v_1,v_2,v_3 but is NOT a linear combination of v_1,v_2,v_3,v_4.

Step-by-step explanation:

(1)

As the hint indicates, you know that

u = c_1 v_1 + c_2v_2+c_3v_3

Then, if you multiply both sides of the equality by 3, you get that

3u = 3c_1v_1+3c_2v_2+3c_3v_3

And that's it. 3u  is in the Span of the vectors \{v_1,v_2,v_3\}

(2)

That's not true, consider the following counter example.

v_1 = (0,0,0,1)\\v_2 = (0,0,1,0)\\v_3 = (0,1,0,0)\\v_4 = (1,0,0,0)\\u = (0,1,1,1)

u is a linear combination of v_1,v_2,v_3 but is NOT a linear combination of v_1,v_2,v_3,v_4.

4 0
3 years ago
Tyrone receives a discount of $8.40 on a hat that normally costs $28.00. What percent discount did he receive on the hat? Show y
aksik [14]

Answer:

Step-by-step explanation:

23

8 0
2 years ago
Find the result when 68 is decreased by 50%.
Sergeeva-Olga [200]

Answer:

34

Explanation:

When 68 is decreased by 50%, that would mean that it is decreasing by half of that number. Half of that number would be 34 and that would be your answer.

4 0
2 years ago
Finds the general equation of the circle centered at the origin and passing through the point -4 -6
cestrela7 [59]
Hello,

r²=(-4)²+(-6)²=16+36=52

x²+y²=52

6 0
2 years ago
What is the value of x?
worty [1.4K]
A triangles angles always add up to 180 degrees, so if you were to subtract the 58 degrees from it that would leave you with 122. and with the 127 degrees all you would have to subtract the 127 from 180 to get 53 degrees which will also be the other given angle. So now you can subtract 53 from 122 leaving you with 69 degrees as your answer!
5 0
2 years ago
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