Answer:
all the living things in the forest ecosystem
Given:
base edge - 8 ft
altitude or height - 75 ft
Surface area = [(3√3)/2] a² + 3a[√h² + (3a²/4)]
S.A = 2.6*8² + 3(8) * √75² + [(3*8²)/4]
S.A = 166.4 + 24 * √5625 + 48
S.A = 166.4 + 24 * √5674
S.A = 166.4 + 24 * 75.33
S.A = 166.4 + 1807.92
S.A = 1974.32 ft²
convert square feet to square yard.
1 sq ft = 0.1111 sq yd
1974.32 ft² * 0.1111 sq.yd/sq.ft = 219.35 sq yd.
22 per sq. yard
219.35 sq. yard * $22/sq.yd = $4,825.70
Total cost is $4,825.70
Answer:
The correct answer is 327.78.
Explanation:
A mortality rate refers to the determination of the rate of the occurrences of deaths in a given population in the course of a particular time period. The formula for finding the mortality rate is:
Deaths taking place in a given time duration / the size of the populace among which the deaths have taken place × 10ⁿ
The given population of the country is 250 million
The number of individuals died due to a certain disease is 819450
Thus, the mortality rate per 100000 can be calculated as:
819450 / 250000000 × 100000 = 327.78 deaths per 100,000 people.
Explanation:
you just need to know that :
population density = no of ( what is asked) / land area.
