What is the value of the discriminant, b2 − 4ac, for the quadratic equation 0 = x2 − 4x + 5, and what does it mean about the num
2 answers:
Answer 1. Discriminant
Given: A quadratic equation
on comparing to the standard quadratic equation ,we get a=1,b=-4 and c=5
Discriminant
<0, which means there will be complex number solutions.
Answer 2. The number of real solutions the equation has,depends on the discriminant
1) If d = 0, then the quadratic equation will have exactly one real number solution (with duplicity.)
2) If d > 0 then the quadratic equation will have exactly two real number solutions.
3) If d < 0 then the quadratic equation will have no real solutions. There will be two complex number solutions.
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Interest on interest, or compound interest, is the adding of interest to the principal sum of a loan or deposit. The account balance after a period of 5 years will be $1.63634×10²⁰.
<h3>What is compound interest?</h3>Interest on interest, or compound interest, is the adding of interest to the principal sum of a loan or deposit. It's the outcome of reinvesting interest rather than paying it out so that interest is received on the principal plus previously collected interest in the next quarter.
A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
Given the principal amount is $12,385, the rate of interest is 7.5%, and the time period is daily. Therefore, the amount can be written as,
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