A. if this door is opened after 10 pm., an alarm will sound. b. this crate of oranges came from the johnson farm if it is not marked with jj. c. the common cold, tu, and other viral diseases occur when the immune system is weak. combine each statement and its converse in exercises 15 and 16 into a biconditional statement

answer: he is 272195

step-by-step explanation: all you have to do is multiple 3535 and 77 and it equals 272195

step-by-step explanation:

no solution.

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct