Answer:
10 mins
Explanation:
Because it takes 2 minutes to fill a 30 gal pool, and 150/30=5, 2 x 5 = 10 giving you the answer of 10 mins to fill a 150 gal pool.
Divide the length of the scale drawing by the scale (2.5) then multiply that by the scale feet (3)
11 inches / 2.5 = 4.4
4.4 x 3 = 13.2 feet
Answer: 13.2 feet
Answer:
b
Step-by-step explanation:
Answer:
Sphere Volume = (4/3) * PI * radius^3
Volume = (4/3) * PI * 19^3
Volume = 28,730.9120146298
Volume = 28,731 (when using PI = 3.14159265...
Volume = 28,716.3466666667
Volume = 28,716 cc answer is A.
Step-by-step explanation:
Answer:
The expression provided by the area (square meters) is given by:
.
Step-by-step explanation:
The area of the algae colony is a function of the radius r (meters), so
.
The radius of the circle formed by the algae colony is a function of time t (in minutes), so
. So,
[Substituting the expression for radius]

Then the expression provided by the area (square meters) is given by:
.