Perimeter of a trapezoid with bases x, 2x and sides x+2 and 2x-3

Perimeter of trapezoid = 6x - 1

Step-by-step explanation:

a trapezoid has two bases (x and 2x) and two sides ( x+2 and 2x-3)

To find the perimeter you add all both bases and both sides

Perimeter of trapezoid = x + 2x + (x+2) + (2x-3); add x's

Perimeter of trapezoid = 6x + 2 -3 ; subtract the numbers

Perimeter of trapezoid = 6x - 1

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have