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Lady bird [3.3K]
2 years ago
5

From the top of a tower that is 300 ft high, a person observes the base of a tree at an angle of depression of 45. identify the

horizontal distance from the tower to the tree rounded to the nearest foot?
answers:

A: 300ft
B: 245 ft
C: 212ft
D: 162 ft

i will give brainliest !! help ASAP
Mathematics
1 answer:
Alexeev081 [22]2 years ago
5 0

Answer:

A

Step-by-step explanation:

Connect the top of the tower (assuming the person's height can be ignored), the bottom of the tower, and the tree to form a right triangle.

Since the person is looking down at a 45 degree, it means the triangle is a equilateral triangle, so the length from the base of the tower to the base of the tree is also 300ft.

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I used 3.14 for pie, since its more common than 22/7.

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2 years ago
What is the equation of a line that passes through the point (8, 1) and is perpendicular to the line whose equation is y=−23x+5
elena-s [515]

Answer:

y-1=\frac{1}{23} (x-8)

Step-by-step explanation:

We can write the equation of a line in 3 different forms including slope intercept, point-slope, and standard depending on the information we have. We have a point (8,1) and a slope from the equation y=-23x+5. We will chose point-slope since we have a point and slope.

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We will substitute m=\frac{1}{23} and x_1=8\\y_1=1.

y-1=\frac{1}{23} (x-8).

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