B
14 pounds in ounces is 64
64+10(from the pineapples)=74
74/6(that how many servings he wants)=13
Answer:
Step-by-step explanation:
![\text{Use}\\\\(a^n)^m=a^{nm}\\\\a^n\cdot a^m=a^{n+m}\\\\(a\cdot b)^n=a^n\cdot b^n\\\\a^{-1}=\dfrac{1}{a}\\--------------------------\\\\\dfrac{5^{2n-1}-4(25^{n-1})}{(5^n\cdot2)^2+3(5^{2n-1})}=\dfrac{5^{2n}\cdot5^{-1}-4\left[(5^2)^n\cdot25^{-1}\right]}{(5^n)^2\cdot2^2+3\left[(5^2)^n\cdot5^{-1}\right]}](https://tex.z-dn.net/?f=%5Ctext%7BUse%7D%5C%5C%5C%5C%28a%5En%29%5Em%3Da%5E%7Bnm%7D%5C%5C%5C%5Ca%5En%5Ccdot%20a%5Em%3Da%5E%7Bn%2Bm%7D%5C%5C%5C%5C%28a%5Ccdot%20b%29%5En%3Da%5En%5Ccdot%20b%5En%5C%5C%5C%5Ca%5E%7B-1%7D%3D%5Cdfrac%7B1%7D%7Ba%7D%5C%5C--------------------------%5C%5C%5C%5C%5Cdfrac%7B5%5E%7B2n-1%7D-4%2825%5E%7Bn-1%7D%29%7D%7B%285%5En%5Ccdot2%29%5E2%2B3%285%5E%7B2n-1%7D%29%7D%3D%5Cdfrac%7B5%5E%7B2n%7D%5Ccdot5%5E%7B-1%7D-4%5Cleft%5B%285%5E2%29%5En%5Ccdot25%5E%7B-1%7D%5Cright%5D%7D%7B%285%5En%29%5E2%5Ccdot2%5E2%2B3%5Cleft%5B%285%5E2%29%5En%5Ccdot5%5E%7B-1%7D%5Cright%5D%7D)
Dolls = d
train = t
8d + 10t = 150
I think is let that
Answer:
c) (-∞, -4] or [7,∞)
Step-by-step explanation:
x² - 3x - 28 ≥ 0
x² - 7x + 4x -28 ≥ 0
x (x - 7) + 4(x - 7) ≥ 0
(x-7) (x + 4) ≥ 0
When x value lies in (-∞, -4], (x-7) value will be negative and (x+ 4) will be negative. So, result will be positive
When x value lies in [7,∞), both (x-7) and (x+ 4) will be positive. So, result will be positive
