Answer:
Step-by-step explanation:
Since 15 liters of water flow through a water pipe and enter a tank within 4.5 minutes, the same amount of water would flow through a similar pipe at the same time. Therefore, if two similar water pipes are used, the volume of water that would flow into the tank in 4.5 minutes is 15 × 2 = 30 liters
Therefore, the time it will take to pump 727.5 liters of water into a water tank using 2 similar water pipes is
(727.5 × 4.5)/30 = 109.125 minutes
Answer:
The complete question is:
Which expression below gives the average rate of change of the function g(x)= -x^2 - 4x on the interval 6 < x < 8
When we have a function f(x), the average rate of change of this function in the interval a < x < b is given by:
Then if we have the function g(x) = -x^2 - 4x
and we want to find the average rate of change in the interval 6 < x < 8 we need to compute:
Answer:
15
Step-by-step explanation:
Answer:
10 feet, option D
Step-by-step explanation:
Got it right on my test.
Well, the rule of rounding is: if the number is higher than 5, or 5, you round up, and if it is lower than 5, you round down. 5 gets rounded up, so that makes 7 and eight, and eight is higher than 5 so it also gets rounded up, so that would be 6,322. If the decimals were lower, than you would have gotten 6,320, but we rounded up, so 6,322 is the correct answer. Did this help?
