Study all notes, reread the chapters again. Have someone ask questions on the chapters page by page. This always has worked for me. Plus try to do this again the night before the test. You will be surprised how much you can remember by doing it again the night before the test. Hope this helps.
Area of a rectangle: 2(L+W)
length: 4+W
Area: 2(4+W) + 2W = 96
8+2W+2W = 96
8+4W = 96
4W = 88
W= 22cm
Calculate for length: 2L + 2(22) = 96
2L + 44 = 96
2L = 52
L = 26cm
• The length is 26cm and width is 22 cm.
Answer:
150cm2
Step-by-step explanation:
A=6a2, where a is the side of one face of the cube. Given a=5cm
A=6(5cm)^2
=6×25cm^2
=150cm^2 or 150cm2
Answer:
420 inches or 35 feet of trim is needed for 5 desks.
Step-by-step explanation:
We know that one desk requires 84 inches, so we need to find out how many inches are needed for 5 desk.
If we know one desk needs 84 inches then we have 1 desk = 84 inches.
To get 5 desk, we need to multiply both sides by 5.
1 desk = 84 inches. (multiply by 5 for both sides)
5 desks = 84 * 5
5 desks = 420 inches
We know now that 5 desks require 420 inches, but many people use feet instead.
There are 12 inches in 1 foot, so we need to divide 420 inches by 12 inches to get how many feet we need.
420/12 = 35 feet.
Hope this helps!
A=pi • r^2 , 3.2^2= 10.24 , 10.24 • 3.14= 32.1536 and then ur answer when you simplify is 32