Peter is going to put up 5 walls in the tree house. Each wall will be 7 feet high and 7 feet across. He wants to leave room for windows that measure 2 feet by 2 feet. Which algebraic expressions will give the total square feet of lumber he will need for the walls if n represents the number of windows he puts in? Choose all that apply. 241n 49n – 4 49n – 4n 245 – 4n 49(5) – 4n (7)(7)(5) – 4n (7)(7)(5) – (2)(2)n

245 – 4n,    49(5) – 4n,    (7)(7)(5) – 4n,    (7)(7)(5) – (2)(2)n,

Step-by-step explanation:

(5 x 7 x 7) - n(2 x 2)

or just d,e,f,g

Step-by-step explanation:

thats way faster than the dude on top of me

D,E,F,G

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)