Answer:
![x^3+x^2-2x\leq140](https://tex.z-dn.net/?f=x%5E3%2Bx%5E2-2x%5Cleq140)
Step-by-step explanation:
This is an algebra problem, and we are expected to inequality for the volume of the aquarium.
Given that the
length= 2x
width=(x – 1)
heigth= (x + 2)
and the volume= 280 ft^3
the inequality expression for the volume is
![2x*(x -1) * (x + 2) \leq 280\\\\](https://tex.z-dn.net/?f=2x%2A%28x%20-1%29%20%2A%20%28x%20%2B%202%29%20%5Cleq%20280%5C%5C%5C%5C)
open the brackets
![2x*(x -1) * (x + 2) \leq 280\\\\(2x^2-2x)*(x+2)\leq 280\\\\\2x^3+4x^2-2x^2-4x\leq 280\\\\\2x^3+2x^2-4x\leq280](https://tex.z-dn.net/?f=2x%2A%28x%20-1%29%20%2A%20%28x%20%2B%202%29%20%5Cleq%20280%5C%5C%5C%5C%282x%5E2-2x%29%2A%28x%2B2%29%5Cleq%20280%5C%5C%5C%5C%5C2x%5E3%2B4x%5E2-2x%5E2-4x%5Cleq%20280%5C%5C%5C%5C%5C2x%5E3%2B2x%5E2-4x%5Cleq280)
divide through by 2 we have
![x^3+x^2-2x\leq140](https://tex.z-dn.net/?f=x%5E3%2Bx%5E2-2x%5Cleq140)
If its to number 9, it's ∈35.48
Answer:
50
Step-by-step explanation:
Equation: 50 is greater than or equal to 45 + .5(x)
x = amount of pictures you can send without going over your budget
subtract 45 from both sides. you are left with: 5 is greater than or equal to .5(x)
multiply both sides by 2. you are left with: 10 is greater than or equal to x
Answer: 10 is greater than or equal to x
The other factor would be (x + 4). We can find this by using synthetic division. To do this, we must first find the divisor, which would be 9, if we let x - 9 equal to zero and solve for x. Then, for the dividend, we can use the coefficients and constant term values.
<u>9</u>| 1 -5 -36
<u> 9 36</u>
1 4 0
Therefore, the other expression (x + 9) would be (x + 4). Hope this helped!