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Anvisha [2.4K]
3 years ago
8

What is the determinant of this matrix? i keep getting 8 but everyone says it’s -28?

Mathematics
1 answer:
stealth61 [152]3 years ago
6 0

Answer:

The answer is 109

Step-by-step explanation:

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4 0
3 years ago
How do i graph 2.5x+8y=200
julia-pushkina [17]

Answer:


Step-by-step explanation:

2.5x+8y=200

We want to get this in slope intercept form so we will solve for y

Subtract 2.5x from each side

2.5x-2.5x+8y=-2.5x +200

8y = -2.5x +200

Now divide by 8 on both sides

8y/8 = -2.5x/8 + 200/8

y = -.3125x +25

The y intercept is 25, so plot a point there

-.3125 = -5/16

Go down 5 and to the right 16 and plot a point.  Connect the two points to make a line.

6 0
3 years ago
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