Answer:
Equation -3x² - x + 3 = -3x² can not be solved using quadratic formula.
Step-by-step explanation:
1. -3x² - x + 3 = -3x²
Simplify above equation,
-3x² + 3x² - x + 3 = 0
or -x + 3 = 0 , Sine x² terms cancelled each other.
Hence this equation can not be solved using quadratic formula.
2. 0 =x² , yes here we can use quadratic formula
3. 0 = 2x²-1
Simplifying the above equation,
0 = 2x² - 1
1 = 2x²
x² =
Hence we can use quadratic formula here.
4. x²+3x-2 = 4x²- 5x - 1
Simplifying given equation,
x²+3x-2 = 4x²- 5x - 1
or x² - 4x² +3x +5x -2 + 1 = 0
or -3x² + 8x - 1 = 0
since x² term is here, hence we can solve this using quadratic formula.
Answer:
He will have to pay $1,650 in interest at the end of 3 years.
Step-by-step explanation:
This is a simple interest problem.
The simple interest formula is given by:
In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.
After t years, the total amount of money is:
Anvi borrowed $5,000 from a bank at a flat interest rate of 11% per year for a 3-year period.
This means that
How much interest does she have to pay the bank at the end of 3 years?
He will have to pay $1,650 in interest at the end of 3 years.