Answer:
10 kph
Step-by-step explanation:
Find the speed of the current of the river.
20/(20 - c) + 180/(20 + c) = 8
20(20 + c) + 180(20 - c) = 8(400 - c^2)
8c^2 - 160c + 800 = 0
8(c^2 - 20c + 100) = 0
8(c - 10)^2 = 0
c = 10
The speed of the current of the river is 10 km/hour.
Answer:
Step-by-step explanation:
One is asked to find the distance between two points on a coordinate plane. The easiest way to do so is to use the distance formula, this formula is the following:
Where (
) and (
) are the points which one needs to find the distance between. In this case, these points are as follows:
Substitute these points into the formula and solve for the distance between these points,
Simplify,
Answer:
about 23% I think
Step-by-step explanation:
I'm not really sure how to get to this though besides just plugging it into your calculator
Answer:
AC. ____ 2. What is another name for line m? a. line JG c. DB b. JGB. → ... Are points B, A, D, and C coplanar? Explain. a. No; one is on plane P. b. Yes ... False; the points to not have to form right angles. d. .... Name all segments parallel to AB. a.
Step-by-step explanation:
