7. Use formulas to find the surface area of the prism below (drawing not to scale). 20 cm
14.1 cm
10 cm
10 cm

surface area =782

Step-by-step explanation:

start with finding the area of all the rectangular faces and adding them together.

-face 1: 20*10=200

-face 2: 20*14.1=282

-face 3: 20*10=200

add them all together--200+282+200=682

next find the area of the two triangular bases

-base 1: 1/2bh=(1/2)(10)(10)=(1/2)(100)=50

-base 2: 1/2bh=(1/2)(10)(10)=(1/2)(100)=50

add those two areas together--50+50=100

finally, add the combined areas of the the rectangular faces and the two triagular bases together to get the total surface area of the triangular prism--

--100+682=782

that means 782 is the total surface area of the triangular prism.

y=mx+b is the final answer!   : )

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.