$900, but not too sure if this is a question to trick you.
the sum of all interior angles in a polygon is
180( n - 2)
n = number of sides
now, this polygon is a quadrilateral, so it has 4 sides, so it's total is just 180( 4 - 2) = 360.
![360=x+4x+3x+2x\implies 360=10x\implies \cfrac{360}{10}=x\implies 36=x](https://tex.z-dn.net/?f=360%3Dx%2B4x%2B3x%2B2x%5Cimplies%20360%3D10x%5Cimplies%20%5Ccfrac%7B360%7D%7B10%7D%3Dx%5Cimplies%2036%3Dx)
Answer:
H can't be a function.
Step-by-step explanation:
If x has more than one y then it doesn't pass the vertical line test and is not a function.
Answer:
315
Step-by-step explanation:
Area = Length x Width
Area = 21 x 15
Area = 315
Answer:
t = 6.3
Step-by-step explanation:
N=Noe^(-kt)
No = 14 grams
k = .1092
We want to find t when N = 7 or 1/2 of 14
N=Noe^(-kt)
7 = 14 e ^ (-.1092t)
Divide each side by 14
1/2 = e ^ (-.1092t)
take the natural log of each side
ln (1/2) = ln e ^ (-.1092t)
ln (1/2) = -.1092t
Divide each side by -.1092
ln (1/2)/ -.1092 = t
t≈6.3475
Rounding to the nearest tenth
t = 6.3