Answer:
B. x=1+2i or x=1-2i.
Step-by-step explanation:
The equation is given as;
x²-2x+5=0
complete the square method to find value of x as;
x²-2x = -5
x²-2x + 1 = -5 + 1
x²-2x +1 =-4
( x-1 )² = -4
x-1 = ±√-4 ---------<em>where √-1 = i</em>
x-1 =± 2i
So;
x-1 = + 2i
x= 1+2i
or
x= 1-2i
x= 1-2i
Answer:
Step-by-step explanation:
<u>Given:</u>
- Initial population = 6.08 billion
- Increase rate = 1.5% or 0.015 times per year
Time passed = 2017 - 2000 = 17 years
<u>Population in 2017:</u>
- P = 6.08*(1 + 0.015)^17 = 7.8 billion
Answer:
h(x) = - 4x² + 5
Step-by-step explanation:
To find h(x) = g(2x² + 1), substitute x = 2x² + 1 into g(x)
h(x) = - 2(2x² + 1) + 7
= - 4x² - 2 + 7
= - 4x² + 5
The correct answer should be 95. I don’t know how you did it but try the PEMDAS method (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction)
