You divide 71 by 9 to get 7 8/9
Answer:
(a)
(b)62.85cm
Step-by-step explanation:
The growth rate of the shrub is given as:
Where t=time in years, h=height in centimeters
(a)First, we solve for the height h(t) by integrating.
(b)The shrub are sold after 7 years of growth. Therefore, we determine the value of h(t) when t=7 years.
The Shrubs are 62.85cm tall when they are sold.
Answer:
3x^3+3x^2+5x-8
Step-by-step explanation:
Answer:
7850 square units
Step-by-step explanation:
According to the question;
- Circumference of a circle is 314 units;
We are required to find the area of the circle;
- First, we need to ask ourselves how we get the perimeter of a circle;
Perimeter of a circle = pi × D or 2 pi r
Therefore;
Rearranging the formula;
D = Perimeter ÷ pi
Taking pi to be 3.14
Then;
Diameter = 314 units ÷ 3.14
= 100 units
But, radius = Diameter ÷ 2
= 100 units ÷ 2
= 50 units
We also need to know how we calculate the area of a circle;
Area of a circle = pi×r²
Therefore;
Taking pi as 3.14
Then, Area = 3.14 × 50²
= 7850 square units
Thus, the area of the circle is 7850 square units
