On a coordinate plane, trapezoid j k l m is shown. point j is at (negative 7, 4), point k is at (negative 4, 4), point l is at (negative 2, 3), and point m is at (negative 8, 3). what is the perimeter of trapezoid jklm? startroot 2 endroot + startroot 5 endroot units 2 + startroot 2 endroot + startroot 5 endroot units 9 + 2 startroot 2 endroot units 9 + startroot 2 endroot + startroot 5 endroot units

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true