Answer: 0.32
Step-by-step explanation:
In word form is: Four hundred twenty three billion, ninety million, seven hundred nine thousand.
Answer:
2 roots in every case, not all are real.
Step-by-step explanation:
All of these equations are quadratic equations (degree 2). Every quadratic has two roots. They may be identical (looks like 1 root), and they may be complex (zero real roots), but there are always 2 of them.
a) the y-value of the vertex is negative and the parabola opens downward (leading coefficient -5), so there are no real zeros and both roots are complex.
b) each binomial factor contributes a root. Both roots are real.
c) the discriminant is positive, (3²-4·2·1=1), so both roots are real.
A. Confined to a specific geographic area
A pandemic is a disease or illness prevalent over an entire country or world.
Answer:
A, y + 3 = 2(x + 2)
Step-by-step explanation:
Point slope form is y -y1 = m(x - x1)
To find the equation for this line, plug in y1, m, and x into the equation.
m = 2
y1 = -3
x1 = -2
y - -3 = 2(x - -2)
Since subtracting a negative changes the sign to a positive, the equation becomes:
y + 3 = 2(x + 2)
This is option A.
