The polynomial y=−0.73x4+3.1x3+26.5 describes the billions of flu virus particles in a person's body x days after being infected. Find the number of virus particles, in billions, after 3 days. There are billion virus particles in a person's body 3 days after being infected.

51.07 billion virus particles

Step-by-step explanation:

The equation that describes the number, in billions, of flu virus particles in a person's body x days after being infected is:

For x = 3 days:

Therefore, after 3 days, there will be 51.07 billion virus particles in a person's body.

answer: my brother can figure it out, imma go get him so i can answer : ) edit: my brother is sleeping, sorry man

step-by-step explanation:

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180