Answer:
see the explanation
Step-by-step explanation:
we have
![2.18*10^{-18}(\frac{3}{16})](https://tex.z-dn.net/?f=2.18%2A10%5E%7B-18%7D%28%5Cfrac%7B3%7D%7B16%7D%29)
we have that
![\frac{3}{16}=0.1875](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B16%7D%3D0.1875)
Convert to scientific notation
![0.1875=1.875*10^{-1}](https://tex.z-dn.net/?f=0.1875%3D1.875%2A10%5E%7B-1%7D)
substitute
![2.18*10^{-18}(1.875*10^{-1}})](https://tex.z-dn.net/?f=2.18%2A10%5E%7B-18%7D%281.875%2A10%5E%7B-1%7D%7D%29)
Remember that
To multiply two numbers in scientific notation, multiply their coefficients and add their exponents
![2.18*10^{-18}1.875*10^{-1}}=(2.18*1.875)*10^{(-18-1)}=4.0875*10^{-19}](https://tex.z-dn.net/?f=2.18%2A10%5E%7B-18%7D1.875%2A10%5E%7B-1%7D%7D%3D%282.18%2A1.875%29%2A10%5E%7B%28-18-1%29%7D%3D4.0875%2A10%5E%7B-19%7D)
Round the number 4.0875 two decimal places
so
![4.0875*10^{-19}=4.09*10^{-19}](https://tex.z-dn.net/?f=4.0875%2A10%5E%7B-19%7D%3D4.09%2A10%5E%7B-19%7D)
Answer:
4:30
Explanation:
Three hours before 7:35 is 4:35, but you also have to subtract the extra 5 minutes to make it 4:30
The question wants us to find 3 times the volume of the pool.
This is because we are told that the pool must be filled 3 times during the summer and asked how many cubic feet of water is required to fill the pool all summer.
Step 1: Find the volume of the pool.
Volume is calculated by multiplying length by width by height.
Pool length = 5 ft.
Pool width = 4 ft.
Pool height = 2 ft.
Pool volume = 5 • 4 • 2
5 • 4 • 2 = 40
The volume of the pool is 40 cubic feet.
Step 2: Find 3 times the volume of the pool.
Volume = 40 ft.^3
3 times volume = 3 • 40 ft.^3
3 • 40 ft.^3 = 120 ft.^3
3 times the volume of the pool is 120 cubic feet.
Answer:
The pool requires 120 cubic feet of water in order to be filled enough over the course of the summer.
Hope this helps!
Answer:
what do you mean?
Step-by-step explanation:
I know it's either A B C or D.