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lana66690 [7]
2 years ago
12

The horizontal distance between two towers is 80 m. The angle of depression of the top of the first tower when seen from the top

of the second tower is 30o. If the height of the second tower is 160 m, find the height of the first tower.
Mathematics
1 answer:
Yuliya22 [10]2 years ago
8 0
Let the height of the first tower be x, then the second tower is (160 - x) m taller than the first tower. Then
tan 30 = (160 - x)/80
160 - x = 80 tan 30
x = 160 - 80 tan 30 = 160 - 46.19 = 113.8 m

Therefore, the height of the first tower is 113.8 m.
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Anika [276]

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

(0.286, 5.587)

»»————- ★ ————-««  

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⸻⸻⸻⸻

  • I have graphed the two equations in a program. When graphed, the lines intersect at point (0.286, 5.587).
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⸻⸻⸻⸻

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4 0
3 years ago
Please help and EXPLAIN !!!!!!! thank you!!! =)))
nataly862011 [7]

The change in profit from 3 days to 8 days = 74 - 59 = $15

The number of days is 8-3 = 5 days

The change per day is 15 / 5 = $3 per day.

The answer is A. $3

5 0
2 years ago
Read 2 more answers
-x + 3 = 7<br><br> X=-4<br> X= 7<br> X= 4<br> X = -7
vladimir2022 [97]

Answer:

x = -4

Step-by-step explanation:

Step 1: Write equation

-x + 3 = 7

Step 2: Solve for <em>x</em>

  1. Subtract 3 on both sides: -x = 4
  2. Divide both sides by -1: x = -4

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

-(-4) + 3 = 7

4 + 3 = 7

7 = 7

6 0
3 years ago
I do not get how to do Simpliflyng Radicals.
Alex_Xolod [135]
First step: Find out the prime numbers that make up the radical, for example, 120 would be 2x2x2x5x3
Second step: If there is 2 of the same number that repeats just put that number in the front of the resulting radical
Third: Just multiply the remaining radicals together and put the number in front of it.
Now you have
2 \sqrt{30}
5 0
2 years ago
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3. If the distance from the Sharks to the dolphins is 12ft, what is the distance from the Dolphins to the Penguins, knowing that
34kurt

Answer:

I'm pretty sure it would also be 12ft

Step-by-step explanation:

This could be true because a triangle has the same length on all three sides

4 0
2 years ago
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