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arlik [135]
3 years ago
9

Set up an equation and solve for x X 2x 3x Equation

Mathematics
1 answer:
ser-zykov [4K]3 years ago
7 0

Step-by-step explanation:

x+2x+3x=180

6x=180

divide both sides by 6

x=30°

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Brainliest to most helpful! Answer asap!
kap26 [50]

ΔAOB is a right angled triangle. Therefore the Pythagorean Theorem applies in this situation.
θ is the angle from a standard position of the line OA

The length of the y component is √(1-0)2 +(-3-(-3))2] =√(12+ 02) = 1 A(-3,1) to B(-3,0) which is opposite

Then the length of the x-component is √[(-3-0)2 +(0-0)2] = √(9+0)= 3 B(-3,0) to O(0,0) which is adjacent

The length of vector OA is √[(-3-0)2 + (1-0)2] = √(9+1) = √(10) A(-3,1) to O(0,0) which is the hypotenuse of the triangle

θ = 180 - α
sinθ = sin(180-α) = opposite/hypotenuse = 1/√10
cosθ = adjacent/hypotenuse = -3/√10
tanθ = opposite/adjacent = 1/-3 = -1/3

α= arcsin(1/√10) ≈ 18
θ =180 -18 ≈162
8 0
3 years ago
What is 7x+4=2x+22? and the answer has to be x=
Mrrafil [7]

Answer:

x = 18/5

Step-by-step explanation:

7x + 4 = 2x+ 22

5x = 18

x = 18/5

7 0
3 years ago
Read 2 more answers
Please help problem is in the image.
nika2105 [10]

Answer:

16.5

Step-by-step explanation:

this is beacuse 16.5 times 2 is 33

5 0
3 years ago
The area of the surface of a pool table is 24 square feet. The perimeter is 22 feet. What are the dimensions of the pool table?
trasher [3.6K]

Answer: The dimensions are 8 and 3

Step-by-step explanation:

So 8*3=24 which corresponds with the formula for area l*w= Area

And perimeter means we add up all 4 sides so

8+8+3+3= 22

So the dimensions are 8 and 3

5 0
2 years ago
PLS PLS ASAP<br> Find the value of x.
Arlecino [84]

Answer:

x = 10 units

Step-by-step explanation:

16 is to 40     as  x+2  is  to  3x

16/40 = (x+2) / 3x

48x = 40x + 80

8x = 80

x = 10

3 0
2 years ago
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