A 15 foot ladder is placed against a wall.Suppose the bottom of the ladder slides away from the wall at a constant rate of 3 ft.How fast is the top of the ladder sliding down the wall when the bottom is 9 feet from the wall?Answera.- 9/4 ft b.9/4 ft

A 15 foot ladder is placed against a wall.Suppose the bottom of the ladder slides away from the wall at a constant rate of 3 ft.How fast is the top of the ladder sliding down the wall when the bottom is 9 feet from the wall?Answera.- 9/4 ft b.9/4 ft The little tiger is learning to climb up a ladder. it is climbing up a ladder的意思 fetch a ladder是什么意思 ( ) up on a ladder Walk under a ladder是什么意思 h______ on up a ladder 请问 ladder spreader 是什么东西这是上下文：Prior to using a step ladder,the following is to be checked:􀂃 the ladder spreader is not damaged or missing and the locking mechanism is operable;􀂃 the ladder spreader has not a foot Do you know on which _______ to go down if there is a fire?A.ladder B.stair B.hose B.reelDo you know on which _______ to go down if there is a fire?A.ladder B.stair B.hose B.reelDo you know on which _______ to go down if there is a fire?A.ladder B.st There is a ladder in f__of my house.首字母已给出,填入合适单词人家是网络小白，待会加赏， The monkey is ()the ladder.(a,climb up b,climbing up c,climbs up d,climbing on)选哪个, there is a hen standing on the foot a ladder ( )(place )against the tree millie gets into the house with a ladder同义词1.millie ------a ladder-------- ---------into the house2.there's a lot of rain in summer in nanjing It------------ ------------- -------------in summer in nanjing3.this bedroom is peter and his twin br 英语翻译a fence is 1.5m high and is 1m from a wall.a ladder must start from the ground,touch the top of the fence,and rest somewhere on the wall.Find the minimum length of such a ladder.请问ladder到底是怎么放的OTL. We climb the tree with a ladder.(对with a ladder提问) Tom is a ( )man .A.six-foot-tall B.six-feet tall C.sixth-foot-tall D.six feet tall