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Archy [21]
3 years ago
13

PLEASEE HELP ANYONE

Mathematics
1 answer:
Grace [21]3 years ago
6 0
1- Leave the 1st case empty

2- Write on the 1st row each element of the trinomial in each case

3-Write on the 1st column in each case each of the element of the binomial

              ║         y²                   -3y                 9
----------- ║-----------------------------------------------------
y             ║        y³                   -3y²                9y
----------- ║---------------------------------------------------
3             ║      3y²                  -9y                  27
------------║----------------------------------------------------
   TOTAL║(y³+3y²) +(-3y²-9y)   +  ( 9y+27)


If you add the Total you will get: (A)  Y³+27


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BigorU [14]

Answer:

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Step-by-step explanation:

3 0
3 years ago
A quantum object whose state is given by is sent through a Stern-Gerlach device with the magnetic field oriented in the y-direct
Ahat [919]

Answer:

The probability that the object will emerge from the + side of this device is 1/2

Step-by-step explanation:

Orienting the magnetic field in a Stern-Gerlach device in some direction(y - direction) perpendicular to the direction of motion of the atoms in the beam, the atoms will emerge in two possible beams, corresponding to ±(1/2)h. The positive sign is usually referred to as spin up in the direction, the negative sign as spin down in the explanation, the separation has always been in the y direction. There can be some other cases where magnetic field may be orientated in x-direction or z-direction.

7 0
3 years ago
I need help please help me
iogann1982 [59]

<u>M</u><u>e</u><u>t</u><u>h</u><u>o</u><u>d</u><u> </u><u>1</u><u> </u><u>:</u>

replace x and y by their value 1 and 3

3 = 4(1) - 1 = 4-1 = 3

2(1) + 3 = 2 + 3 = 5

correct

<u>M</u><u>e</u><u>t</u><u>h</u><u>o</u><u>d</u><u> </u><u>2</u><u> </u><u>:</u>

y = 4x - 1

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y = 4x - 1

y = -2x + 5

y - y = 4x - 1 - ( -2x + 5 )

0 = 4x - 1 + 2x - 5

6x - 6 = 0

6x = 6

x = 6/6 = 1

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y = 4(1) - 1

y = 3

correct

4 0
2 years ago
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Plz help its due tonight <br><br> thanks a lot
kicyunya [14]

x + y = 14 \\ 340x + 1030y = 8210
x = 14 - y
Substitute into
340(14 - y) + 1030y  = 8210 \\ 4760 - 340y + 1030y = 8210 \\  690y = 3450 \\ y = 5
Insert y = 5 into
x = 14 - 5 \\ x = 9
Answer: 9 coach tickets, 5 first class tickets.

Hope this helps.
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4 years ago
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boyakko [2]

Answer:

Step-by-step explanation:

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7 0
3 years ago
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