Answer:
x=17
Step-by-step explanation:
Since these angles are supplementary, they will add up to 180 degrees, so you can set up the equation like this:
4x+8+104=180
First, combine like terms:
4x+(8+104)=180
4x+112=180
Next, subtract 112 from both sides:
4x+112(-112)=180(-112)
4x=68
Then, divide each side by 4:
4x(/4)=68(/4)
x=17
17 is your answer.
The answer for the following question is A) -b
1 stone = 20 square inches
1 stone * 30 = 20 square inches * 30
30 stones = 600 square inches
The angle does not matter. Think of it as finding the other side to a triangle. Use
![a ^{2} +b^2 =c^2](https://tex.z-dn.net/?f=a%20%5E%7B2%7D%20%2Bb%5E2%20%3Dc%5E2%20)
a=39 (line AB)
b=b (the leg we need to find)
c=89 (line BD)
![39^2 + b^2 = 89^2](https://tex.z-dn.net/?f=39%5E2%20%2B%20b%5E2%20%3D%2089%5E2%20)
![1521 + b^2 = 7921](https://tex.z-dn.net/?f=1521%20%2B%20b%5E2%20%3D%207921%20)
(subtract the 1521 from both sides)
![b^2 = 6400](https://tex.z-dn.net/?f=b%5E2%20%3D%206400)
(square root both sides)
![\sqrt{(b^2)} = \sqrt{6400} ](https://tex.z-dn.net/?f=%20%5Csqrt%7B%28b%5E2%29%7D%20%3D%20%20%5Csqrt%7B6400%7D%20%0A)
b = 80
AD=80
We are asked in this problem the surface area of the prism given the dimensions: <span>9mm by 12mm by 8mm. Surface area is the sum of the areas of each face of the prism. The formula for surface area is 2*lw+2*lh+ 2*wh. In this case, upon substitution, SA = 2*9*12+2*9*8+2*12*8 equal to a total of 552 mm2. </span>