The stock of company a gained $0.30 throughout the day and ended at a value of
$10.30. by what percentage did the stock rise?

The stock rose a 3 %

Step-by-step explanation:

If the stock gained $0.30 and ended at a value of  $10.30, then its initial value was $10.30 - $0.30 = $10.

percentage increase = value gained/value at the start of the day * 100

percentage increase = 0.3/10 * 100 = 3%

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