Answer:
Bob has owed this land for 21.68 years.
Step-by-step explanation:
The price of the land can be modeled by the following function:
In which P(t) is the price after t years, P(0) is the initial price, and r is the growth rate, as a decimal.
In this problem, we have that:
We want to find t, when . So
We have that:
So to find t, we apply log to both sides
Bob has owed this land for 21.68 years.
.17 is halfway because .1+.07= .17 and .24-.07= .17
Answer:
D.
Step-by-step explanation:
In the first 3 equations, both sides are equal, so they each have infinitely many solutions.
The last choice is
3(-2x + 4) = -6x - 12
Distribute on the left side.
-6x + 12 = -6x - 12
Add 6x to both sides.
12 = -12
Since 12 = -12 is false, this equation has no solution.
Answer: D.
If the 2 is an exponent, it should be marked as such.
“3x2” means 3x⋅2
“3x^2” means 3x²
3x²+8x = 0
Discriminant = 8²-4(3)(0) = 64