To find an equivalent, divide 4 acres by .6 acres= 6.666... then divide the cost of 4 acres ($520 by 6.666....= $78) So it would cost 78 dollars to plant .6 acres of corn.
Answer:
a=1.29 approx
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identity
tanx = 
Consider the left side
← divide terms on numerator/denominator by cotA
= 
= 
= right side , thus proven