Answer:
Angle AOD and Angle DOB are supplementary
Step-by-step explanation:
AOB is straight(180°) Line DO is a line that creates two angles
Answer:
The distance is minimized 22 minutes after 3:00 pm.
Step-by-step explanation:
Let t is the time for the 2 boats after 3:00 pm, we have the distance of:
- Boat 1: 20t
- Boat 2: 15t and its distance to the dock is given by (15-15t)
The paths of the boats form a right triangle, in which the hypotenuse (also the distance between the two boats) is:
D = (20t)² + (15 - 15t)²
<=> dD/dt = -2(15² )( 1-t ) +2 × 20² × t
<=> dD/dt = 2 (15² + 20²) × t -2 ( 15 )² = 0
<=> t = 2 ( 15 )² : 2 (15² + 20²)
<=> t = 0.36 hours = 0.36 × 60 = 21.6 minutes ≈ 22 minutes
Therefore, the distance is minimized 22 minutes after 3:00 pm.
Answer:
Slope=3
Step-by-step explanation:
It tells you how to do it
Answer:
2+2=4, because 2 is made up of two ones and theres 2 2's which makes it 1+1+1+1=4
Step-by-step explanation:
That would be:
2
---
3
---------
6
---
7
Now invert the divisor (6/7) and mult:
2 7 7
--- * ---- = ------ (answer)
3 6 9
