Janelle wrote 23.4 for
the product of 7.8 x 0.3. use number
sense to decide if janelle placed the
decimal point in the correct place in
the product. if it is incorrect, give the
correct product.

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb

what chart am i supposed to follow?