Census data for a certain county were used to construct the following frequency distribution for commute time (in minutes) of working adults. Commute Time Relative Frequency 0 to <5 0.0509 5 to <10 0.1848 10 to <15 0.1968 15 to <20 0.1538 20 to <25 0.1389 25 to <30 0.0549 30 to <35 0.1019 35 to <40 0.0190 40 to <45 0.0190 45 to <60 0.0390 60 to <90 0.0200 90 to <120 0.0210 (a) Notice that not all intervals in the frequency distribution are equal in width. Why do you think that unequal width intervals were used

idk

step-by-step explanation:

idk

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

step-by-step explanation: hi!