What’s an equivalent expression to 4(4a+5)

16a+20

Step-by-step explanation:

Use the distribute property. We can turn 4(4a+5) to (4*4a)+(4*5). From this we get 16a+20.

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