X-5y+4z=27 4x-3y-z=23 3x+3y-6z=-9
1 answer:
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Answer:
A. 72cm
Step-by-step explanation:
Figure a is a convex pentagon, a convex pentagon is a pentagon that does not have an internal angle greater than
An easier thing to remember is that it does not have an angle pointing inwards like b, none of its angles/edges point toward the shape/inside
Answer:
Step-by-step explanation:
We want to find the inverse of
We interchange x and y.
We need to solve for y, so let us multiply through by 2.
Subtract 6 from both sides.
Therefore the required inverse is