You need to use FOIL. It works like this: multiply the F-irsts, multiply the Outsides, multiply the Insides, mulitply the Lasts. This gives you 6x squared+9x-2x-3. Now you just need to combine the like factors, giving you the final answer of 6x squared+7x-3.

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3 years ago

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A surveyor measures the angle of elevation of the top of a mountain from a point at

Sauron [17]

The height of the mountain from a point a sea level is approximately 1496.650 meters.

<h3>What is the height of mountain from sea level?</h3>

First, we construct the <em>geometric</em> diagram of the situation and find all needed angles and sides to determine the height of the mountain. First, we determine the missing side x by the law of sines:

Law of sines

1000 m/sin 3° = x/sin 14.261°

x ≈ 4706.886 m

Now we determine the height of the mountain by <em>trigonometric</em> functions:

h = 100 m + (4706.886 m) · sin 17.261°

h ≈ 1496.650 m

The height of the mountain from a point a sea level is approximately 1496.650 meters.

To learn more on law of sines: brainly.com/question/13098194

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2 years ago

Please help giving brainliest

Stels [109]

Answer:

C & D

Step-by-step explanation:

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2 years ago