Tommy wants to analyze the weight of the students at his school. He measures the weight of 100 randomly selected students in the school. He finds the mean is 80 pounds and the standard of the deviation is 8 pounds. Out of 100 students , how many should weigh between 64 and 96 pounds ?

where is the image?

step-by-step explanation:

we need the options

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