no he doesnt because "-16' is negatiive
option a is correct.
scale factor: it is used to find proportional measurements.
proportions means having the same ratio.
scale factor is the ratio of the model measurement to the actual measurement in a simplest form.
or we can say that the ratio of any two corresponding lengths in two similar geometric figures
if the scale factor is more than 1, then it is an enlargement,
if the scale factor less than 1, then it is a reduction.
given the two geometric figure:
by definition of proportions, we have
center (1,3) with radius 6
we must complete the square to find the center and radius of the circle.
first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.
we now create space between the x and y terms with parenthesis.
we complete the square by taking the middle terms -2x and the -6y - divide each and square them.
we add the squares to both sides.
and write the quadratics in factored form.
the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.
model is 2 pounds.
what is the an...