A car travels a distance of 145 miles in a time of 2.4 hours. What is its average speed rounded to 1dp?

60.4miles/hr

Step-by-step explanation:

Given parameters:

 Distance covered by the car = 145miles

 Time taken  = 2.4hrs

Unknown:

Average speed of the car  = ?

Solution:

Average speed is the rate of change of distance with time;

   Average speed  =

Input the parameters and solve;

   Average speed  =  = 60.4miles/hr

the nearest power is 1.651.

means 7482 to the 1.651th power is almost equal to 2489287

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