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Solnce55 [7]
3 years ago
15

Please show work for these questions(thanks)

Mathematics
1 answer:
Art [367]3 years ago
7 0
Every answer to number 1 is detailed and is highly based on substitution... please kindly follow me.. I'll try my best to provide the next answer before I fall asleep.. and click on the thanks button..

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10.54 cm^2. You just have to find area of the square then area of the circle. Subtract the area of the circle from the square to get the answer
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Answer:

Answer is A

Step-by-step explanation:

subtract 15 1/4 and 2 2/3

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Explain why 2n+1 must be an odd number
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Talja [164]

Answer:

can be fourth one cause it starts at 2 on y axis. ( fourth option)

Step-by-step explanation:

can't be the first one cause it starts at origin

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3 0
3 years ago
Benjamin is trying to find the height of a radio antenna on the roof of a local building.
xz_007 [3.2K]

The height of the antenna on the roof of the local building is approximately 8 meters.

The situation forms a right angle triangle.

<h3>Properties of a right angle triangle:</h3>
  • One of its angles is equals to 90 degrees
  • The sides of the triangles can be calculated using Pythagoras theorem.

Therefore, let's find the height of the building and the radio antenna from the eye point.

Using trigonometric ratios,

tan 40° = opposite / adjacent

tan 40° = x / 25

where

x = the height of the building and the radio antenna from the eye point.

x = 25 tan 40

x = 25 × 0.83909963117

x = 20.9774907794 meters

Let's find the height of the building from his eye point.

tan 28° = y / 25

where

y = height of the building from his eye point

y = 25 × tan 28°

y = 25 × 0.53170943166

y = 13.2927357915 meters

Height of the antenna = 20.9774907794 - 13.2927357915 = 7.68475498786

Height of the antenna ≈ 8 meters

learn more on elevation here: brainly.com/question/17582385?referrer=searchResults

8 0
3 years ago
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