Answer:
The diameter will increase at a rate of 1/30π cm/min
Step-by-step explanation:
Here we want to calculate the rate at which the diameter will increase
Mathematically, the area of a sphere is given as;
A = 4πr^2
But r = d/2
so A = 4 * π * d/2 * d/2 = πd^2
dA/d(d) = 2πd
Thus dd/dA = 1/2πd = 1/2 * π * 15 = 1/30π
Given dA/dt = 10
Mathematically;
d(d)/dt = d(d)/dA * dA/dt
dd/dt = 1/30π * 10 = 10/30π = 1/3π cm/min
Let's find 1st the total area:
Area rectangle =100x44 = 4,400 yards²
Area of the 2 half cercles = 1 complete circle=π.R²=π.22² yards²=484π yards²
= 1,520.5 YARDS²
TOTAL AREA =4,400 + 1,520.5 = 5,920.53 yards
Cost of fertilizing = 5920.53 x 0.4 =$2,368.21 (Answer B)
Answer:
ab=30 ac=60
Step-by-step explanation:
Answer:
Each side is 7 inches
Step-by-step explanation:
A hexagon has 6 sides so if we divided it by it's 42 inches 42/6 it will be 7 each side is 7 inches.
Hope I did it right :)
1/10 is smaller if you think about it as making smaller pieces to get 10 pieces and bigger pieces to make 7 or you can think of it as 1/7 being closer to 0 than 1/10 is. Or you can convert them to decimal 0.14 (1/7) and 0.1 (1/10)
