Astore sells five models of cameras for $190.00, $420.00, $270.00, $300.00, and $420.00. if the sales tax rate is 6%, what are the mean, median, mode, and range of the total cost of the cameras?

Mean = $339.2

Median =$ 318

Mode = $ 445.2

Range = $ 243.8

Step-by-step explanation:

Given: A store sells five models of cameras for $190.00, $420.00, $270.00, $300.00, and $420.00.

The sales tax = 6%=0.06

Then, the costs of the cameras after tax will be

i.e. The total costs of the cameras will be 201.4, 445.2, 286.2, 318, 445.2

Now, Mean =

Arrange in ascending order,

201.4, 286.2, 318,445.2, 445.2

Median = middle most value =318

Mode = Most repeated value = 445.2

Range = Largest - Smallest

=

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it