Answer:
x=14
Step-by-step explanation:
45 = 3 (x + 1)
Distribute the 3 to both terms in the parentheses
45 = 3x +3
Subtract 3 from each side
45-3 = 3x+3-3
42 = 3x
Divide each side by 3
42/3 = 3x/3
14 =x
If it's just 1.1 <= 1.21 then its deemed true
But since there's no identified x I'll list 2 possible solutions.
1) 1.1x ≤ 1.21
Divide 1.1 from both sides.
x ≤ 1.1
I don't know how to graph on a computer, sorry.
2) 1.1 ≤ 1.21x
Divide 1.21 from both sides.
x ≥ 0.91 (Approx.)
Again, don't know how to graph on a computer.
Multiply 1.275 with 51 to get the answer (65.025)
Answer:
![525\pi](https://tex.z-dn.net/?f=525%5Cpi)
Step-by-step explanation:
Volume of a cylinder is given by the function ![v=\pi r^{2}h](https://tex.z-dn.net/?f=v%3D%5Cpi%20r%5E%7B2%7Dh)
where v is volume, r is radius and h is height.
In order to find the radius we just divide the diameter in half and get
![\frac{10}{2} =5=r](https://tex.z-dn.net/?f=%5Cfrac%7B10%7D%7B2%7D%20%3D5%3Dr)
now we just plug the values in the formula
![v=\pi r^{2}h\\=\pi (5^{2})(21)\\=\pi (25)(21)\\=525\pi](https://tex.z-dn.net/?f=v%3D%5Cpi%20r%5E%7B2%7Dh%5C%5C%3D%5Cpi%20%285%5E%7B2%7D%29%2821%29%5C%5C%3D%5Cpi%20%2825%29%2821%29%5C%5C%3D525%5Cpi)
Her best choice would be to take a fixed rate mortgage because it would let her know exactly how much she would pay each month.