Draw a right triangle to represent the problem.
The vertical height of the triangle is 9 ft, and it represents the tree.
The horizontal length, at the bottom of the tree is ground level and has a length of 13 ft.
Let x = angle of elevation.
By definition,
tan x = 9/13 = 0.6923
x = arctan(0.6923) = 34.7 deg. = 35 deg (approx)
Answer: 35°
Answer:
Hello
Step-by-step explanation:
Answer:
The formula to determine the length of rectangle with perimeter and width is L =
Step-by-step explanation:
Given as :
The perimeter of rectangle = P
The length of rectangle = L
The width of rectangle = W
∵ Perimeter of rectangle given as P = 2 × Length + 2 × Width
I.e P = 2 L + 2 W
Or, 2 L = P - 2 W
∴ L =
Hence The formula to determine the length of rectangle with perimeter and width is L =
Answer
Complete Question
The complete question is shown on the first uploaded image
Answer:
The value is 
Step-by-step explanation:
From the question we are told to obtain the area to the of the z-score 1.39 and to the left of the z-score 1.53, this is mathematically represented as

From the z table on the question the area under the normal curve to the left corresponding to 1.53 and 1.39 is

and

So

=> 