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sertanlavr [38]
3 years ago
7

Please help me find the answer

Mathematics
1 answer:
Doss [256]3 years ago
7 0

Answer: x=2

Step-by-step explanation:

What you do is you plug the y equation on top and you substitute it in for the y on the equation below. You have -3x=-2(-5x+8)-10

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1. You are standing on top of a ridge using a clinometer trying to figure out how far your dog has wandered off in
olga_2 [115]

<u>Given:</u>

It is given that the ridge is 360 inches tall.

<u>Assumptions:</u>

Assume you are 170.1 cm tall which equals 67 inches tall, the height from your eye to the floor is 360+67 = 427 inches.

The distance from your eye level to the bottom of the ridge is 427 inches.

Assume the angle A is 60°.

<u>To find the distance from you to your dog.</u>

<u>Solution:</u>

A right-angled triangle can be formed where the angle is 60°, the distance between you and the dog is the hypotenuse of the triangle and your height from the floor is the adjacent side of the triangle.

Assume the hypotenuse of the triangle measures x inches.

To determine the length of the hypotenuse, we determine the cos of the angle.

cos \theta = \frac{adjacent side}{hypotenuse} .

cos A = \frac{427}{x} , x = \frac{427}{cos60} , cos60=0.5.

x=\frac{427}{0.5} = 854.

So if the ridge is 360 inches tall and you are 67 inches tall and the angle A is 60°, the distance between your dog and you is 854 inches.

3 0
4 years ago
50 POINTS HELP/BRAINIEST
Zinaida [17]

Answer:

Proof:

By the inscribed angle theorem, we know that angle BAC is equal to angle DEC. By the second corollary to the inscribed angle theorem, we know that line segment AE is perpendicular to line segment AC. Therefore, line segment AE is tangent to circle C.

Step-by-step explanation:

Analyze and ensure the answer is correct.

5 0
2 years ago
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The floor of a rectangle deck has an area of 600 square feet . The floor is 20 feet wide . How long is the floor ?
zhenek [66]
Area of rectangle= Width x Length
600= 20x Length
Length= 600÷20= 30
Ans: The floor is 30 feet long.
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7 0
4 years ago
What is the product of three negative integers
ddd [48]
<h2><em>A negative answer. If there is an even amount of Negatives, it becomes a positive. If an odd amount of Negatives, it's a Negative.</em></h2><h2><em>Examples:</em></h2><h2><em>-2 x -7 = 14.</em></h2><h2><em>-2 x 7 = -14.</em></h2>
7 0
3 years ago
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What is the volume of the pyramid?
Ivenika [448]

Answer:

The Great Pyramid of Giza/Volume

<h2>2.6 million m3</h2>

Step-by-step explanation:

The great pyramid of Giza

5 0
3 years ago
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