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drek231 [11]
3 years ago
14

Tony wants to model the Associative property of addition using a number sentence. Which number sentence could be used for Tonys

model?
A. 6+(4+5)=6+(5+4)
B. 8+7=8+7+0
C. 7+(3+6)=(7+3)+6
D. 8+7=9+6
Mathematics
1 answer:
FinnZ [79.3K]3 years ago
8 0
A. 12=12
B. 15=15
C.16 = 16
D.15=15
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Answer:

Inputs:

Radius (r):

0.65

or

Diameter (d):

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Area (A):

1.327

Unit of Lenght:

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Calculate Circumference

Result:

The circumference of a circle with diameter 1.3 is 4.084(*)

Formulas:

r = 0.65

d = 1.3

C = 4.08

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C = circumference or perimeter

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Step-by-step Solution:

Circumference of a cicle in terms of radius:

Circumference = 2·π·r = 2·3.14·0.65 = 4.09(*)

In terms of diameter:

Circumference = π·d = 3.14·1.3 = 4.08(*)

In terms of area:

Circumference C = √4·π·A = √4·π·1.33 = 4.09(*)

(*) 4.084 cm exactly or limited to de precision of this calculator (13 decimal places).

Note: for simplicity, the operations above were rounded to 2 decimal places and π was rounded to 3.14.

A circumference of 4.084 centimeters is equal to:

4.084E-5 kilometers (km)

0.04084 meters (m)

40.84 millimeters (mm)

2.53768E-5 miles (mi)

0.0446632 yards (yd)

0.13399 feet (ft)

1.60787 inches (in)

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