Answer: -6x
Step-by-step explanation:
multiply 2 by 3
Answer:
0.41 in.
Step-by-step explanation:
Given:
Frank has a sheet of paper of 1/624 inch thick
The sheet is folded in half, the total thickness is 1/312 inch
The sheet folded in half again and the total thickness is 1/156 inch
Required: thickness of the sheet after folded 8 times=?
1st thickness= 1/624 inches
2nd thickness = 1/312 inch(after 1st fold)
3rd thickness=1/156 inch( after 2nd fold)
1/312 ÷ 1/624 = 2
1/156 ÷ 1/312 = 2
There is a common ratio 2 between each two fold
The thicknesses of the sheet after each fold formed a geometric series
Any term of the geometric series is
where,
a =first term
r = ratio between each two consecutive terms
n=position of the term
a = 1/312 because it is the thickness of the 1st fold
r = 2 , n = 8
=> 0.41 in
Answer:
I would try saying that it is a real number
Step-by-step explanation:
Draw a rectangle. If the length is 3 inches longer than its width, we can write the width as "w" and the length as the width + 3
Area is (width)(Length) = (width)(width+3)
W
----------
| |
| |
| | L = w+3
| |
| |
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A = (w+3)(w)
A = w2 + 3w = 108.
(Problem states that area is 108 sq in)
Need to solve this quadratic equation
w2 + 3y - 108 = 0
Factor:
(w - 9) (w + 12) = 0
So
w - 9 = 0. or. w + 12 = 0
Solve these and get
w = 9. or. w = -12
Only one that makes sense in real life is the poitive one.
So the dimensions are
Width = 9 inches
Length = 12 inches
Answer:
its a right angle and the area of it is 24
Step-by-step explanation: