Answer: 20
Step-by-step explanation: see screenshot
8.8 squared + 9.5 squared = square root 12.94 rounded 12.1
Answer:
a ≈ 8.9
Step-by-step explanation:
Set up the equation as so:
8a^2 + 2 = 634
First, subtract two from both sides:
8a^2 = 632
Then, divide by 8 to further isolate the variable.
a^2 = 79
To get rid of the squared, you have to take the square root of both sides. The square root of 79 is roughly 8.9. Ergo, a ≈ 8.9
Answer:
every new hour, the previous amount of bacteria is multiplied by four.
Step-by-step explanation: