Suppose the dolphin swims 12 miles in 30 min when the water is still. How far can it swim in 1 hour if it swims with a current ( that is it is going in the same direction as the current), with the current going 3 miles per hour.

27 miles

Step-by-step explanation:

12*2 =24+3 =27

definition: a circle is the  set of all points in a plane that are equidistant  from a given  point  called the center of the circle. we use the symbol ⊙ to represent a circle. the a line segment from the center of the circle to  any point  on the circle is a radius of the circle.

step-by-step explanation:

i googled it and this is what i got i don't know how it is. sorry.

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation: