Answer: By 9.1%
Step-by-step explanation:
Answer:
−530865
Step-by-step explanation:
hoped I helped:)
Answer:
![y=150*3^{x}](https://tex.z-dn.net/?f=y%3D150%2A3%5E%7Bx%7D)
Step-by-step explanation:
so basically make a system of equations using what's given and solve.
Understand that the equation is the same as ![y=ab^{x}](https://tex.z-dn.net/?f=y%3Dab%5E%7Bx%7D)
First: make two points to plug in
(0, 150) and (1, 450)
Therefore x (or t) is the time in months
and y (or N) is the number of lilies
Second: Plug in to make system
![150=ab^{0} \\450=ab^{1}](https://tex.z-dn.net/?f=150%3Dab%5E%7B0%7D%20%5C%5C450%3Dab%5E%7B1%7D)
Third: solve
let's start with the fist equation
first simplify: b to the zero power is just 1 ![b^{0} =1](https://tex.z-dn.net/?f=b%5E%7B0%7D%20%3D1)
![150=a1\\150=a](https://tex.z-dn.net/?f=150%3Da1%5C%5C150%3Da)
Now plug in 150 to the a in the other equation
![450=ab^{1}\\450=150b^{1}](https://tex.z-dn.net/?f=450%3Dab%5E%7B1%7D%5C%5C450%3D150b%5E%7B1%7D)
solve for b
simplify: ![b^{1} =b](https://tex.z-dn.net/?f=b%5E%7B1%7D%20%3Db)
![450=150b](https://tex.z-dn.net/?f=450%3D150b)
b=3
now you're done
equation: ![y=150*3^{x}](https://tex.z-dn.net/?f=y%3D150%2A3%5E%7Bx%7D)
Answer:
2nd option on the top right
Step-by-step explanation:
3z+21=2
Subtract 21 from both sides
3z=0
Z=0