There are 320 rods in a mile, what part of a mile is 1 rod?
2 answers:
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Answer:
The height of the hill = h = 580.7 feet
Step-by-step explanation:
Let height of the hill = h
From the triangle A B D
Tan 22 =
⇒ AB = h & B D = y + 700
⇒ Tan 22 = ------------(1)
From triangle ABC
Tan 38 =
⇒ AB = h & BC = y
⇒ Tan 38 = ------------------(2)
⇒ h = y tan 38 -----------------(3)
Put the value of h from equation (3) into equation (1) we get
⇒ (tan 22) × (y + 700) = y × tan 38
⇒ 0.40 y + 282.82 = y × 0.78
⇒ y = 742.12 feet -----------------(4)
Put this value of y in equation 3 we get
⇒ h = 742.12 × tan 38
⇒ h = 580.7 feet
This is the height of the hill.
Answer:
[1,2], [2,1], [3,0]
Step-by-step explanation:
To find F-1(x) if F(x)=x+3 we just need to put -x instead of x.
From our graph(attached) we multiply any three solutions by a -1:
Hence, the 3 solutions are [1,2],[2,1],[3,0]
