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Nataliya [291]
3 years ago
10

What is -1 + (4 + 9) = (-1 + 4) + 9 property?

Mathematics
2 answers:
AfilCa [17]3 years ago
8 0

Answer:

12=12

Step-by-step explanation:

Hatshy [7]3 years ago
7 0

Answer:

12=12

Step-by-step explanation:

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Nancy wants to buy 32 notebooks to give to her classmates, each notebook cost $1.75, how much will Nancy pay for 32 notebooks?
beks73 [17]

Answer:

Step-by-step explanation:

32n($1.75/n)=$56

Answer D

8 0
2 years ago
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George would like to build a garden this year, George measure out his proposed garden and would like to know how many square fee
Blababa [14]

Answer:

The area is 105.5ft^2

Step-by-step explanation:

Required

The area of the composite figure

The figure can be divided to 2 shapes

(1) Rectangle: Length = 6ft and Width = 8ft

(2) Trapezoid: Height = 5ft (i.e. 8 - 3), Parallel sides = 9ft and 14ft (i.e. 20 - 6)

The area of the rectangle is:

Area = 6 * 8 = 48

The area of the trapezoid is:

Area = \frac{1}{2}(9 + 14) * 5

Area = \frac{1}{2}(23) * 5

Area = 11.5 * 5

Area = 57.5

So, the area of the garden is:

Total = 48 + 57.5

Total = 105.5

5 0
3 years ago
Simplify (w/6)^-2<br><br> A.w^2/36<br><br> B.1/36w^2<br><br> C.36/w^2<br><br> D.36w^2
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6 0
3 years ago
If you subtract twelve from twice a number, the result is six.what is the number?
zzz [600]
12×2+6= your anwser. (tip:12×2 is 24)
7 0
3 years ago
Find the surface area of the pyramid.
Monica [59]

Answer:

306 mi^2

Step-by-step explanation:

surface area = area of base + lateral area

surface area = s^2 + 4bh/2

surface area = (10 mi)^2 + 4(10 mi)(10.3 mi)/2

surface area = 306 mi^2

8 0
3 years ago
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