0
Still curious? Ask our experts.
Chat with our AI personalities
Judy
Fran
ProfessorAdd your answer:
Earn +20 pts
What is the height of a hill when the distance between its angles of elevation which are 20.92 degrees and 31 degrees on level ground is 110 meters?
Using trigonometry the height of the hill works out as 115.58 meters rounded to two decimal places
What is gradient or slope?
Slope is rise/run, or vertical height/horizontal distance. If a hill rises 100 feet high over a horizonatl distance of 1000 feet, it has a slope of 100/1000 = 0.10. Thais one -tenth slope, or one-tenth gradient, which is a 10% grade.
How many feet is a 10 percent grade on a hill?
A 10% grade rises 1 foot for every 10 feet that it proceeds horizontally. This can go on for miles.
What is a high uplifted area with steep slopes that are higher than a hill?
fjord
Can you find a reason why negative numbers were invented?
You need to have numbers that represent the idea of taking something away. If I pile up some dirt and consider the ground as level zero. Then the height of my hill is a positive number. If I dig a ditch, I must take dirt away. If the earth again is ground zero, the depth of my ditch can be given as a negative number. If my hill is 101 feet high, I use 101, but if it is 101 feet deep, I use -101. Other examples are owing money as a negative and earning as a positive. RAWR
