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OlgaM077 [116]
3 years ago
8

What are the properties to the following

Mathematics
2 answers:
masya89 [10]3 years ago
8 0

Answer:

1. Associative Property of Multiplication

2. Multiplicative Identity Property

3. Multiplicative Inverse Property

4.Additive Identity Property

5. Associative Property of Addition

6. Additive Inverse Property

JulijaS [17]3 years ago
4 0
I was going to help but I don’t understand the question
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A lighthouse operator sights a sailboat at an angle of depression of 12 degrees. If the sailboat is 80m away, how tall is the li
mart [117]
Check out the attached image for the drawing of how this would look. The drawing isn't 100% needed but it helps I think. 

Based on the figure shown in the attachment, we have a right triangle with the adjacent leg of 80 (this leg is closest to the bottom 12 degree angle) and an opposite leg of h

In short,
adjacent = 80
opposite = h

We'll use the tangent rule
tan(angle) = opposite/adjacent
tan(12) = h/80
80*tan(12) = h
h = 80*tan(12)
h = 17.0045249336018  <<-- see note below

So the lighthouse is roughly 17.0045249336018 meters tall

Answer: 17.0045249336018

Note: Make sure you are in degree mode. The value is approximate. Round this answer however you need to

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3 years ago
Really need help in a rush!!!!!!
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The lines below are perpendicular the slope of the red line is -2 what is the slope of the green line
Gala2k [10]

Answer:

The slope will be 1/2.

Step-by-step explanation:

Sine the lines are perpendicular, the slope of the green line will be the negative reciprocal of the slope of the red line. To find the negative reciprocal of -2, first change the sign. Since the slope is negative, make it positive 2. Then to find it's reciprocal, divide 1 by your answer. 1 divided by 2 is one half, s that is your answer.

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Solve for t in terms of q, r, and s.<br> r = sqt<br> t=
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Answer:

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r=sqt

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