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Pavel [41]
3 years ago
13

Please help me with my question ​

Mathematics
2 answers:
Paladinen [302]3 years ago
8 0

Answer:

poor dude, sorry for u, got tht wrong

olchik [2.2K]3 years ago
4 0

perpendicular dot product .

(ai - 5j ) ( 3i+12j) =0

3a – 60 = 0

3a=60

a=60/3

a= 20

The choose d. 20

I hope I helped you^_^

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-x + 4y = -4<br> y = 1/2x -2
anygoal [31]
<h2>(x, y) = (6, 1)</h2>

Step-by-step explanation:

-x + 4y = -4

y = 1/2x -2

-x + 4(1/2x - 2) = -4

-x + 2x - 2 = 4

x = 4 + 2

x = 6

y = 1/2x - 2

y = 1/2 x 6 - 2

y = 3 - 2

y = 1

(x, y) = (6, 1)

3 0
3 years ago
What is the result of -7+10-(-3)?
Natasha2012 [34]

Answer:6

Step-by-step explanation:

-7+10-(-3)

Using BODMAS

-7+10+3

3+3=6

4 0
3 years ago
Read 2 more answers
Assume that 22 kids have their names (all different) put into a hat. The teacher is drawing 5 names to see who will speak first,
Vinil7 [7]

Answer:

22 to the 5th power

Step-by-step explanation:

Oh and also these are some of the kid's names:

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7 0
2 years ago
By law, the maximum slope of a wheelchair ramp is 1/12.
Snezhnost [94]
Yes, it meets the requirements. 1/12 simplifies to 0.0833 and 4/50 simplifies to .08. .
7 0
4 years ago
Elimination 3x3 help please
GarryVolchara [31]
2x + 2y + 1z = -5 ⇒ 2x + 2y + 1z = -5 ⇒ 4x + 4y + 2z = -10
3x + 4y + 2z =  0 ⇒ 3x + 4y + 2z =  0 ⇒  3x + 4y + 2z =   0
1x + 3y + 2z =  1                                                        x = -10

2x + 2y + 1z = -5
3x + 4y + 2z =  0 ⇒ 3x + 4y + 2z = 0
1x + 3y + 2z =  1 ⇒ 1x + 3y + 2z = 1
                                          2x + y = -1

      2x + y = -1
2(-10) + y = -1
    -20 + y = -1
  + 20       + 20
             y = 19

           2x + 2y + z = -5
2(-10) + 2(19) + z = -5
         -20 + 38 + z = -5
                  18 + z = -5
                - 18       - 18
                          z = -23
                (x, y, z) = (-10, 19, -23)
6 0
3 years ago
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