Answer:
7892 dolphins
Step-by-step explanation:
let P denote the dolphin population.
-Notice this is an exponential decay and is denoted as:
Where;
- is the population at time t
- t is the time
- r is the rate of decay or decrease in population
- is the initial population size.
#Given t=30yrs, =20000 and r=3.1%, the population after 30 years is estimated as:
Hence, the dolphin population after 30yrs is approximately 7892
Answer:
The correct answer is B. b=3a + 2
Step-by-step explanation:
Plug in the values from column A into each equation and find which one works. In this case, the only option that works is B.
Answer:
$93.15 will be the cost of the sport coat.
Step-by-step explanation:
Given that
Price of a sport coat = $230
Sale on all sport coats = 55%
So, discount sport coat as per sale:
So, discounted price offered to the customer = $230 - $126.5 = $103.5
It is given that the customer has an coupon of additional discount of 10% off:
So, he will have an additional discount of :
$103.5 10
So, final cost for the customer of the product with price $230:
$103.5 - $10.35 =<em> $93.15</em>
<span>500 = 0.5 kw
0.5 * 8 * 7.5 = 30c</span>