A machinist must cut 12 strips of metal that are each 3 ft 3 7/8 in. long. What is the total length needed in inches?

The total length needed in inches is .

Given that,

Based on the above information, the calculation is as follows:

Now

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478 1/2

Step-by-step explanation: 3 ft 3 7/8 in. is 39 7/8 in. 39x12=468. 7/8x12=84/8 or 10 1/2. 468+10 1/2=478 1/2.

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

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