Answer:
19.08
Step-by-step explanation:
each gal = $2.12
gals filled = 9
9 x 2.12 = 19.08
Answer:
2. 12.08
3. 7.74
Step-by-step explanation:
a squared + b squared = c squared
2. 5 squared = 25, 11 squared = 121, 25 + 121 = 146, the squre root of 146 is 12.08
3.19 squared = 361, 421 - 361 = 60 60 squared = 7.74
False.
The Rational Root theorem states that P is a factor of the constant term and q is a factor of the leading coefficient.
You can factor -80 as
![-80 = (-1)\cdot 16 \cdot 5](https://tex.z-dn.net/?f=-80%20%3D%20%28-1%29%5Ccdot%2016%20%5Ccdot%205)
So, we have
![\sqrt{-80} = \sqrt{(-1)\cdot 16 \cdot 5}](https://tex.z-dn.net/?f=%5Csqrt%7B-80%7D%20%3D%20%5Csqrt%7B%28-1%29%5Ccdot%2016%20%5Ccdot%205%7D)
The square root of a product is the product of the square roots:
![\sqrt{-80} = \sqrt{(-1)}\sqrt{16}\sqrt{5}](https://tex.z-dn.net/?f=%5Csqrt%7B-80%7D%20%3D%20%5Csqrt%7B%28-1%29%7D%5Csqrt%7B16%7D%5Csqrt%7B5%7D)
Since
and
, we have
![\sqrt{-80} = 4i\sqrt{5}](https://tex.z-dn.net/?f=%5Csqrt%7B-80%7D%20%3D%204i%5Csqrt%7B5%7D)
No, the first choice equals 190 and the second 144.