# math

posted by .

john was building a new fence and he wnats it to stand 8 1/2feet above the ground level. to make sure it is secure he must place it 2 3/4 feet into the ground. howlong of a apost should john buy?
a)10 1/2 feet
b)10 3/4 feet
c)11 1/2 feet
d)11 1/4 feet
e)11 feet
i choose d am i correct?

• math -

Yes. d) 11 1/4 feet is correct.

## Similar Questions

1. ### Math

John was building a new fence, and he wants it to stand 8 1/2 feet above ground level. To make sure it is secure he must place it 2 3/4 feet into the ground. How long of a post should John buy?
2. ### Calculus

A fence 5 feet tall runs parallel to a tall building at a distance of 7 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?
3. ### Pre-Calculus Algebra

A building is 2 ft from a 9-ft fence that surrounds the property. Worker wants to wash window in the building 13 ft from the ground. He wants to place ladder over fence so it rests against the building. He decides he should place the …
4. ### math

A 150-foot-long ramp connects a ground-level parking lot with the entrance of a building. if the entrance is 8 feet above the ground, what angle does the ramp make with the ground. draw the picture
5. ### calculus

A fence 8 feet tall stands on level ground and runs parallel to a tall building. If the fence is 1 foot from the building, find the shortest ladder that will extend from the ground over the fence to the wall of the building.
6. ### Math

A 10-foot fence was set 2 5/6 feet into the ground. What is the exact length of the fence above ground?
7. ### math

John as building a new fence and wants it to stand 81/2 feet above ground level to make sure its secure he must place it 23/4 feet into the ground.how long of a post should john buy?
8. ### Algebra

A building is 2ft from a 9ft fence that surrounds the property. A worker wants to wash a window in the building 13ft from the ground. he plans to place a ladder over the fence so it rests against the building. he decides he should …
9. ### Geometry

A 32-foot ladder leans against a building on level ground. It just reaches a window 25 feet above the ground. To the nearest degree, what angle does the ladder make with the ground.
10. ### Algebra

A building is 2ft from a 9ft fence that surrounds the property.A worker wants to wash a window in the building 13 ft from the ground. He plans to place a ladder over the fence so it rests against the building.He decides he should place …

More Similar Questions