SOLUTION: Are these correct answers?
7. A 15 foot ladder is learning against a house so that it is 7 feet from the ground. What angle does the ladder make with the ground?
arcsin 7
Algebra.Com
Question 1137375: Are these correct answers?
7. A 15 foot ladder is learning against a house so that it is 7 feet from the ground. What angle does the ladder make with the ground?
arcsin 7/15 = 27.818
8. A plane must begin its descent when it is 80 feet above the ground and 250 feet from the airport. At what angle should his descent be if he wants to fly in a straight line from the point of descent to the ground?
arccos 8/25 = 57.769
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
1. correct
hypotenuse is
height is
angle is:
°
2.
->it is °
since you are given:
A plane must begin its descent when it is feet above the ground (which is one leg of right triangle) and feet from the airport (which is other leg of right triangle) , so you should use tan
recall, the angle of elevation is equal to the angle of depression that pilot lowers the nose at: so,
°
RELATED QUESTIONS
A ladder leaning against a house makes an angle of 30 degrees with the ground. the foot... (answered by mananth,dabanfield)
A ladder leaning against a house makes an angle of 60 degrees with the ground. The foot... (answered by Boreal,MathTherapy)
A ladder is leaning up against a house. If the angle of the ladder with the ground is... (answered by Theo)
A 15 foot ladder is leaning against a house with its bottom 9 feet from the base of the... (answered by Cromlix)
Martin is painting his house and needs to reach a point 9 feet above the ground. He... (answered by stanbon)
a 15 foot ladder is placed against the wall of a house such that the botton of the ladder (answered by rapaljer)
A 15-foot ladder is placed against the wall of a house such that the bottom of the ladder (answered by stanbon)
A ladder is leaning against a house and is forming a 60 degree angle with the ground. If... (answered by tomlaidlaw)
A ladder is leaning against the side of a house and forms a 65 degree angle with the... (answered by Theo)