I think it’s C, correct me if I’m mistaken.
Answer:
-1+√6
-1-√6
Step-by-step explanation:
x²+2x-5=0
x=(-2±√(2²-4(-5)))/2=(-2±√(4+20))/2=(-2±√24)/2
x₁=(-2+√24)/2 or x₂=(-2-√24)/2
x₁=(-2+2√6)/2 or (-2-2√6)/2
x₁=-1+√6 or x₂=-1-√6
Answer:
-3n + 18
Step-by-step explanation:
an = dn + (a - d)
The difference is -3.
The first term is 15.
an = -3n + (15- (-3))
an = -3n + 15 + 3
an = -3n + 18
It is rational because any number that can be represented in a fraction is rational. 4/33 is a fraction, so it is rational.
Three consecutive integers that have a sum of 45 are 14, 15 and 16. 14+15+16=45
