Answer:
none of the above
Step-by-step explanation:
cohen's d= (Mean of population - mean of sample)/ standard deviation of population
0.5 = (80-mean of sample)/12
Mean of sample= 74
A=(3.14)(12.5)^2
A=(3.14)(156.25)
A=490.625 ft squared
Answer:
a^2 + b^2 = c^2
Step-by-step explanation:
The Pythagorean theorem is
a^2 + b^2 = c^2 where a and b are the legs of the triangle and c is the hypotenuse