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ale4655 [162]
3 years ago
11

Uhh help?? I’m highly confused I just want answers

Mathematics
1 answer:
mihalych1998 [28]3 years ago
3 0

Answer:

1) x = 5√3, y = 5

2) x = 16, y = 8

3) x = 10, y = 5

4) m = 9√15/10, n = 9√5/10

5) x = 3√3/2, y = 3/2

6) x = 6√5, y = 3√5

7) x = 5, y = 5

8) x = 5√2, y = 5

9) a = 2, b = √2

10) m = 10√6/3, n = 5√6/3

Explanation:

For special right triangles, there is a certain side ratio that applies due to the angle measurements which are opposite of the corresponding angles.

For 30° - 60° - 90° triangles (Scalene Right), we can use x as a marker for the side opposite of 30°, the side opposite of the 60° angle will be x√3, and the side opposite of the 90° angle will be 2x.

For 45° - 45° - 90° triangles (Isosceles Right),

Both 45° angles can be thought of as x, and the 90° angle can be thought of as x√2.

This is all computed as a result of the trigonometric functions:

SOH CAH TOA.

This is a shortcut for these specific triangles.

If you do not have the side marked as x, just do the inverse operation to get it.

90° is always opposite of the hypotenuse (longest side of a triangle; looks like a slant)

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Answer:

1206 square centimeters

Step-by-step explanation:

Hello, I can help you with that

a tin is a cylinder,a cylinder is formed by 2 circles anda 1 rectangle

let's remember

Area of the circle

A=\pi *radius^{2}

Area of the rectangle

A_{r}=length *wide\\

the length of the rectangle is the height of the tin  (16 cm)

and the wide is equal to the perimeter of the circle

perimeter of the circle(P)

P=2*\pi *radius

so, the area of the rectangle is

A_{r}=length *wide\\\\A_{r}=heigth *2*\pi *radius

Step one

find the total area:

the total area is equal to 2 circles + 1 rectangle

A_{total}=(2* \pi *radius^{2} )+(height*2*\pi *radius)

Step two

put the values into the equation

height = 16 cm

radius= 8 cm

A_{total}=(2* \pi *radius^{2} )+(height*2*\pi *radius)\\A_{total}=(2* \pi  )+(16*2*\pi *8)\\A_{total}=(128* \pi  )+(256*\pi )\\A_{total}= 378 \pi\\ A_{total}=1206.37

so, the total area is 1206.37 square centimeters

I hope it helps, have a great day.

6 0
3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

As we know that domain of a relation basically consists of all the first elements or x-coordinates of order pairs.

As the relation is : {(-4, 3), (-4, 4), (-3, 1), (1, 1)}

So,  

         Domain: {-4, -3, 1 }

Note: We can not duplicate an element when we determine the domain of any relation. As -4 was present in first and second order pairs i.e. (-4, 3), (-4, 4). But, we have to write it only once when we write the domain of any relation.

So, the domain will be listed as:

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Keywords:  domain, relation

Learn more about domain from brainly.com/question/7783748

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