The answer is B. Rational
R = = 3.6 and A = 2
given that R is inversely proportional to A, then
R = ← k is the constant of variation
To find k use the condition R = 12 when A = 1.5
k = RA = 12 × 1.5 = 18
the equation is therefore
R =
when A = 5, then
R = = 3.6
when R = 9, then
9 = ( multiply both sides by A )
9A = 18 ( divide both sides by 9 )
A = 2
To determine the cost per second can be calculated by converting the given unit in terms of second. The conversion factor that will be used is 1 minute is equal to 60 seconds. Also, use proper dimensional analysis as shown below.
R = ($12,800 / minute) (1 minute / 60 seconds)
R = $213.33/seconds
Therefore, one second of advertisement during prime time costs $213.33.
Answer:
3.141592
Step-by-step explanation: