Answer:41.2in
Step-by-step explanation:
Answer:
15.) 9.5%, 5/9, 0.95, 99%
16.) 0.35, 3/8, 38%, 50%
17.) 44.5%, 0.45, 54%, 4/5
18.) 0.3, 3%, 20%, 1/3
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
The 30-60-90 triangle rule is 2x-x-3(square root of x). Hope this helps.
One way to do this is to try the different option to replace x. Let's start with 8. Two sides of the rectangle would be 8.
8*2=16
Now you have to take 16 from 40 to see what's left.
40-16=24
2(20-8)=2(12)=24
That means 8 is an option to use, but you still need to see if any of the other options work to find the greatest area.
9*2=18.......40-18=22.......2(20-9)=2(11)=22
9 would also work.
10*2=20.......40-20=20.......2(20-10)=2(10)=20
10 would work
11*2=22.......40-22=18.......2(20-11)=2(9)=18
So all of them would work. Now you just need to find the largest area, which is length x width.
x(20-x)
8(20-8)=8(12)=96
9(20-9)=9(11)=99
10(20-10)=10(10)=100
11(20-11)=11(9)=99
So if x is 10, It would make the largest area.
(Sorry for all the extra work. I never trust that all the answers would work for the perimeter)
Around 5.9 since if u divide 5.2 by 7 it would .74 just multiply that by 7 and round ur answers.
