The scatter plot below shows the number of pizzas sold during weeks when different numbers of coupons were issued. the equation represents the linear model for this data. y = 3.4x + 43 according to the model, how many more pizzas are sold for each additional coupon issued?

3.4 pizzas

Step-by-step explanation:

The slope intercept form of a line is

             .... (1)

where, m is slope and b is y-intercept.

A scatter plot shows the number of pizzas sold during weeks when different numbers of coupons were issued.

The given regression equation is

             .... (2)

On comparing (1) and (2), we get

It means the initial number of pizzas is 43 and the number of pizzas sold increased by 3.4 for each additional coupon issued.

Therefore, the 3.4 more pizzas are sold for each additional coupon issued.

step-by-step explanation:

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet