A police officer monitored the speed (mph) of the cars in a particular traffic area. Prepare a frequency distribution for this data using 7 classes.

36, 21, 27, 24, 54, 28 ,36, 43,

22, 29, 37, 40, 26, 25, 38, 23,

44, 30, 26, 39, 37, 40, 38, 36,

41, 45, 52, 42, 43, 42, 48, 50, 53

03/23/2020

OverdueLPercents and Fractions--Assigned

Spelling 600

DueTypeTitleScoreStatus

04/13/2020

OverdueTUnit Test--Assigned

Step-by-step explanation:

03/23/2020

OverdueLPercents and Fractions--Assigned

Spelling 600

DueTypeTitleScoreStatus

04/13/2020

OverdueTUnit Test--Assigned

20-25: 5

26-30: 5

31-35: 0

36-40: 10

41-45: 7

46-50: 2

51-55: 4

Step-by-step explanation:

The answer is

20-25: 5

26-30: 5

31-35: 0

36-40: 10

41-45: 7

46-50: 2

51-55: 4

because to solve this problem you must make seven intervals and sort the numbers into those seven intervals.

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

step-by-step explanation: