Please help, NO Absurd answers Use technology or a z-score table to answer the question.

The speed of automobiles at one spot on a highway is normally distributed with a mean of 60 miles per hour and a standard deviation of 5.2 miles per hour.

Approximately what percent of automobiles at that location are traveling between 50 and 65 miles per hour?

2.7%

16.8%

80.4%

83.2%

correct

step-by-step explanation:

44

step-by-step explanation:

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