Which matrix represents the system of equations shown below? y = 10
4x-5y = 3
A.
0 1 3
4 -5 10
B.
0 -5 10
4 1 3
B
C.
0 1 10
4 -5 3
D.
4 1 10
0-5 3

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5

large crystals result from very slow cooling.

evaporation of water: this would produce an evaporite which is a sedimentary rock. like a salt pan in a desert. not possible to have volcanic rocks originate this way.

crystalization in molten earth: slow cooling over time. (hundreds to millions of years)

crystalization at earth's surface: this results in fast cooling. (a few hours to a few months or years)

crystalization from cooling off hot water: that would be a hydrothermal deposit. while associated with volcanics they are not volcanic rocks themselves and usually occur fairly rapidly.