Answer:
Length of material needed = 35.8 feet
Step-by-step explanation:
Door of the wooden garage is in the shape of a rectangle with dimensions 16 ft × 8 ft.
Lincoln is going to place two boards in the shape of an X on the door.
From the picture attached,
Diagonals of the rectangular door will be equal in measure.
Therefore, length of the material = 2×(Diagonal of the rectangle)
By applying Pythagoras theorem in the rectangle,
(Diagonal)² = 16² + 8²
Diagonal = = 17.89
Therefore, length of material = 2 × 17.89
= 35.77
≈ 35.8 feet
We can easily figure out how fast the boat is moving per hour.
35 km / 7 hours = 5 km/h
We now know that we are moving at a rate of 5 kilometers every 1 hour. We can now take our 5 km/h and multiply it by 3 hours to get our answer
5 km/h x 3 = 15 kilometers
Good luck!
Answer:
5-x^2
Step-by-step explanation:
Hope that helps