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Aleksandr-060686 [28]
3 years ago
14

Which of the following vectors are orthogonal to (-1,3)? Check all that apply. A. (1,3) B. (3,1) C. (-6,-2) D. (-2,-3)

Mathematics
1 answer:
Inga [223]3 years ago
5 0
C
( - 6. - 2)
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Paha777 [63]

Answer:

Is is Infinitely many solutions so 0=0

<em><u>Step-by-step explanation:</u></em>

<h3>First we have to rearrange/simplify the equations:</h3>

Equation 1: 4y - 3x = -20

Equation (2):  y - 3x/4  = -5

<h3>Then you remove the fractions by multiplication: </h3>

Multiply equation (2) by 4

<h3>The Equations now look like this: </h3>

Equation 1: 4y - 3x = -20

Equation (2): 4y - 3x = -20

<h3>Solve for y on Equation (2):</h3>

y = <u><em>3x/4 - 5</em></u>

<h3>Then plug in this for the y in Equation 1 and then solve:</h3>

4•(<u><em>3x/4-5</em></u>) - 3x = -20

Therefore the answer leads to:

Infinitely many solutions, 0=0

Hope this helped :')

4 0
3 years ago
3. half of 42, increased<br> by 5
OlgaM077 [116]

Answer:

26

Step-by-step explanation:

Half of 42 is 21.

21 + 5 = 26

Hope this helps you out ; )

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Cherry is paid $72.00 for working six hours in a library. If the amount paid is proportional to the number of hours worked, what
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Answer:

She's being paid six hours per hour

Step-by-step explanation:

She's being paid six hours per hour

72/6 = 6

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