. The speeds of cars on the highway have a mean of 65 mph with a standard deviation of 5 mph. If a police car stopped cars that were going more than80mph, how many cars would they stop ifthere were 8000 cars on the highway

do 65 / 5 then multiply 80 * it 100

so, converting firstly the mixed fractions to improper fractions and then "adding".

(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