The discriminant is b² - 4ac, in this case equal to 16 + 84 = 100.
The nature of the solution is real and rational (if that's what you mean).
i hope this was helpful! :D
Answer:
In the area that she observed, the water level fell 13.64mm over 6.4 years, for an average annual rate of change of: -13.64 ÷ 6.2 = -2.2 mm/ year.
The rectangle looks like
A —— B
D —— C
so AB = 84
BC = 63
AD = 63
CD = 84
Answer:
-11/7
Step-by-step explanation:
Answer:
Rate of interest = 10.95%
Step-by-step explanation:
Given:
Amount deposit in bank = 25,000
Number of year = 60 year - 40 year = 20 year
Future value = 200,000
Find:
Rate of interest
Computation:
A = P[1+r]ⁿ
Future value = Amount deposit in bank[1+Rate of interest]ⁿ
200,000 = 25,000[1+r]²⁰
8 = [1+r]²⁰
1.1095 = 1 + Rate of interest
Rate of interest = 0.1095
Rate of interest = 10.95%
