Answer:
Step-by-step explanation done
What is the value of the expression 2 (exp) 2 + 4 (exp) 2 ÷ 2 (exp) 2?
1 answer:
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Answer:
The population increased by 34.69% over 20 years.
Step-by-step explanation:
It is given that the population of dolphins increases at a constant rate of 1.5% every year for 20 years.
Formula for population increase:
where, a is initial population, r is growth rate and t is time in years.
If the population of dolphins increases at a constant rate of 1.5% every year for 20 years, then the population after 20 years is
Where, a is the initial population.
The total percentage increase over the 20 years is
where, P is population after 20 years and a is initial amount.
Therefore the population increased by 34.69% over 20 years.
Answer:
The height of the fox in Huseyin's drawing is, 16 units
Step-by-step explanation:
Proportion states that the two ratios or fractions are equal.
As per the statement: Huseyin draws a fox with a scale of 3 units on his graph paper represents 15 cm. The fox has an actual height of 80 cm.
⇒ We are given Scale of 3 units.
On graph paper the length of fox is 15 cm.
The fox has an actual height = 80 cm
let x be the height in units of the fox in Huseyin's drawing.
By definition of proportion;
by cross multiply we get;
Simplify:
240 = 15x
Divide both sides by 15 we get;
x = 16 units.
Therefore, the height of the fox in Huseyin's drawing is, 16 units