5) the equation ax = 5 is consistent, if and only if ū is in the span of columns of matrix a. 6) a linear transformation x + ax is one-to-one if the equation ax = 5 is always consis- tent. 7) a linear transformation x + ax is onto, if columns of matrix a span codomain of the transformation. 8) if the columns of matrix a is linearly independent, then the linear transformation x ax is one-to-one. every non-zero n x n matrix a is invertible. ) if a linear transformation x ax is one-to-one and onto, then the matrix a is invert-

step-by-step explanation:

what is the figure? attach a picture.

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2

step-by-step explanation:

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