X^4 - x^2 + 9 - (x^3 + 3x^2 + 12) =
x^4 - x^3 - 4x^2 - 3
Distance swam in 5 minutes = 85.4 yards
Since, 1 min = 60 seconds and 1 yard = 0.91 meter
5 minutes =
seconds
85.4 yards =
meters
So, Distance swam in 300 seconds = 77.7 meters
Now, we will use unitary method to determine the distance swam in 70 seconds.
Distance swam in 1 second =
= 0.26 meter
So, Distance swam in 70 seconds = 
= 18.2 meters
Therefore, the swimmer took 70 seconds to cover the distance of 18.2 meters.
Answer:
79
Step-by-step explanation:
first sub in 24 into the d (days)
then solve for L (length) from there with addition.
hope this helps!!
The formula for volume of a sphere is : V= 4/3 * PI * r^3
r = 1/2 the diameter: 14/2 = 7 feet
Volume = 4/3 * 3.14 * 7^3
Volume = 1,436 cubic feet.