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Nesterboy [21]
3 years ago
5

Need HELP ASAP!! Please help me

Mathematics
1 answer:
ivann1987 [24]3 years ago
7 0
Answer:
The length of the remaining piece of thread is 1/16
Step-by-step explanation:
Given:
A tailor cuts a piece of thread One-half of an inch long from a piece Nine-sixteenths of an inch long.
Now, to find the length of the remaining piece of thread.
Total thread = 9/16
Tailor cuts a piece of thread = 1/2
Now, to get the length of the remaining piece of thread by subtracting tailor cuts a piece of thread from the total thread:

9/16-1/2= 9-8/16 = 1/16
Therefore, the length of the remaining piece of thread is 1/16 :)
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Let f(x) = x2 - 81. Find f-1(x).
aalyn [17]
The answer is <span>1) ± √x+81
</span>
Step 1: Substitute y for f(x). <span>
Step 2: </span>Since every (x, y) has its partner (y, x)y switch x and y.
Step 3: <span>Solve for y.

Step 1.
The function is:         f(x) = x</span>² - 81
Substitute y for f(x):   y = x² - 81

Step 2.
Switch x and y: x = y² - 81

Step 3.
Solve for y (which is now f⁻¹(x)): f⁻¹(x) = y
x = y² - 81
y² = x + 81
y = +-√(x+81)

Therefore, the choice 1) is correct.
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marishachu [46]

Answer:

x+z=m

Step-by-step explanation:

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Serhud [2]
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Answer:

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Step-by-step explanation:

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