Which of the following inequalities is not true? A) -2/2 < 3
B) |-1| ≥ 0
C) |-9| ≠ |9|
D) -7 ≤ -5

C) |-9| != |9|

Step-by-step explanation:

The definition of absolute value is simply the non-negative value of the argument without regards to the sign.  With this in mind, let's walk through these options.

A) -2/2 < 3 ==> -1 < 3 which is True

B) |-1| >= 0 ==> 1 >= 0 which is True since 1 is > 0

C) |-9| != |9| ==> 9 != 9 which is False since 9 == 9

D) -7 <= -5  which is True since -7 is < -5

Cheers

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

x = 3 ± √(5+y)