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Tanzania [10]
2 years ago
13

Write the following numbers in decimal form. (Note: Some of these numbers have been rounded.)

Mathematics
1 answer:
mestny [16]2 years ago
8 0

Answer:

So wavelength in decimal can be written as 0.00000155 m                

Step-by-step explanation:

We have given wavelength of light used in optic fibers is 1.55\times 10^{-6}m

We have to convert this wavelength in decimal form

We know that 10^{-6} can be written as 10^{-6}=\frac{1}{1000000}=0.000001

So 1.55\times 10^{-6}=1.55\times 0.000001=0.00000155m

So wavelength in decimal can be written as 0.00000155 m

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An arithmetic sequence is represented by the explicit formula A(n) = 2 + 9(n - 1). What is the recursive formula?. . A. A(n) = A
KiRa [710]
A(n) = 2 + 9(n - 1) = 2 + 9n - 9
A(n + 1) = 2 + 9(n + 1 - 1) = 2 + 9n = (2 + 9n - 9) + 9 = A(n) + 9

Therefore, the recursive formular is A(n) = A(n - 1) + 9
6 0
3 years ago
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How do i find the circumference? HELP PLEASE!!
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Answer:

28.26 inches

Step-by-step explanation:

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Find the distance from the point (4,2) to the line y= −2.
riadik2000 [5.3K]

Answer:

The distance is 4.

Step-by-step explanation:

The shortest distance from the point (4,2) to the line y=-2, in this case, would be a straight line perpendicular to y=-2.

For each and every value of "x" on the line, y = -2. The shortest distance occurs at y(4) = - 2.

At this point the distance is:

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The distance is 4.

6 0
3 years ago
8. Temperatures in degrees Celsius (C) may be changed to degrees Fahrenheit (F) by using the formula F = 1.8C + 32º. Find the te
pentagon [3]

Answer:

-40 °F = -40 °C

Step-by-step explanation:

(1) F = 1.8 C + 32

If the Fahrenheit and Celsius temperatures are the same, then

(2)        F = C     Substitute (2) into (1)

           C = 1.8C + 32     Subtract 1.8 C from each side

C – 1.8 C = 32                   Combine like terms

   -0.8C = 32                   Divide each side by -0.8

         C = -32/0.8

(3)      C = -40                  Substitute (3) into (1)

        F = 1.8(-40) + 32

        F = -72 + 32

       F = -40

So, -40 °F = -40 °C

The thermometer below shows that -40 °F = -40 °C.

8 0
3 years ago
A 26-foot long ladder is leaning against a building
xxTIMURxx [149]

Answer:

13

Step-by-step explanation:

cos(60) =building height / 26

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2 years ago
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