7. x – a is the factor of a polynomial P(x) if P(a) is equal to options:
A) 2
B) 1
C) 3
D) 0

Step-by-step explanation:

x - a is a factor of the polynomial P(x).

P(a) means the input for the polynomial is a.

a - a = 0

Anything multiplied by 0 is 0. If the factor is equal to 0 then the whole polynomial will be equal to 0.

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation:

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2