Answer:
x+7=90 find the value of x
Step-by-step explanation:
Answer:
Step-by-step explanation:
The area of the equilateral triangle is ![\frac{\sqrt{3}}{4}(6)^{2}=\boxed{9\sqrt{3}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7B3%7D%7D%7B4%7D%286%29%5E%7B2%7D%3D%5Cboxed%7B9%5Csqrt%7B3%7D%7D)
Answer: Last Option
Step-by-step explanation:
By definition the sum of the internal angles of a triangle must always be equal to 180 °.
This means that:
![32 + (2x-15) + (x-5)=180](https://tex.z-dn.net/?f=32%20%2B%20%282x-15%29%20%2B%20%28x-5%29%3D180)
Now we solve the equation for the variable x
![32 + 2x-15 + x-5=180](https://tex.z-dn.net/?f=32%20%2B%202x-15%20%2B%20x-5%3D180)
![2x+x +32-15-5=180](https://tex.z-dn.net/?f=2x%2Bx%20%2B32-15-5%3D180)
![3x +32-20=180](https://tex.z-dn.net/?f=3x%20%2B32-20%3D180)
![3x +12=180](https://tex.z-dn.net/?f=3x%20%2B12%3D180)
We subtract 12 in both barks of the equation
![3x +12-12=180-12](https://tex.z-dn.net/?f=3x%20%2B12-12%3D180-12)
![3x=168](https://tex.z-dn.net/?f=3x%3D168)
Divide by 3 on both sides of the equation
![\frac{3}{3}x=\frac{168}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B3%7Dx%3D%5Cfrac%7B168%7D%7B3%7D)
![x=\frac{168}{3}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B168%7D%7B3%7D)
![x=56](https://tex.z-dn.net/?f=x%3D56)
Finally the measure of angle ABC is: (56-5)° = 51°
There are 63 students in the room, this is because 21 time 3 gives you 63.
Answer:
True
Step-by-step explanation:
The definition of the function is a relation with exactly one x for each y. x is the domain, and y is the range, so all functions have a domain and a range.