Below is a student's mathematical model of the farmhouse roof with measurements added.
The attic floor, ABCD in the model, is a square. The beams that support the
roof are the edges of a block (rectangular prism) EFGHKLMN. E is the middle
of AT, F is the middle of BT, G is the middle of CT and H is the middle of DT.
All the edges of the pyramid in the model have length 12 m.
Calculate the area of the attic floor ABCD.

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

answer: $53750

steps:

list the principal and interest after the n-th year:

n       principal   simple interest

1     12500     375

2     25000     750

3     37500     1125

4     50000     1500

sum: $50000     $3750

total at end of year 4: $53750