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cupoosta [38]
3 years ago
6

Using the pi key on your calculator, find the circumference of the earth in meters. Round your answer to a reasonable degree of

precision. Write both the standard form and scientific notation.
Mathematics
1 answer:
Setler [38]3 years ago
8 0

Answer:

40.2×10^6 m ( this is in scientific notation )

4.02×10^7 m (this is in standard form

Step-by-step explanation:

Radius of earth is 6400 km or 6400× 1000 =6400000m =6.4×10^6 m

circumference  C is given by formula C = 2πR WHERE C IS CIRCUMFERENCE AND R IS RADIUS

C = 2×π×6.4×10^6

C = 40.2×10^6 m ( this is in scientific notation )

C= 4.02×10^7 m (this is in standard form )

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Needing help with these 2 problems
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Answer:

15) 3.2

17) 13.4

Step-by-step explanation:

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a² + b² = c²

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You are trying to find one of the side lengths (not the hypotenuse) in 15). To find the other length, you can plug the other values into the equation and simplify to find "b".

15)    a = 4.1     c = 5.2

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16.81 + b² = 27.04                         <----- Raise numbers to the power of 2

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b = 3.2                                           <----- Take the square root of both sides

You are trying to find the hypotenuse in 17). Since you have been given the lengths of the other sides, you can plug them into the equations and simplify to find "c".

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Answer:

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