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katen-ka-za [31]
3 years ago
8

Please help, tysm :)

Mathematics
2 answers:
kakasveta [241]3 years ago
4 0

Answer:

Step-by-step explanation:

the second one

HK and IJ

Delicious77 [7]3 years ago
3 0

Answer:

Its the last one DH and FG

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Evaluate and simplify the following complex fraction
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Which situation is best modeled with a division expression?
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Any situation which requires splitting up or separation of terms and items amongst certain groups of people. Division is useful when simplifying fractions and in word problems involving probability, or sharing of items, or proportioning.

4 0
4 years ago
For the function f(x)=x+9/7-4x find f^-1(x)
Liula [17]

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f(x)=\frac{x+9}{7-4x} \\put ~f(x)=y\\flip~x~and~y\\f(y)=x\\y=f^{-1}(x)\\y=\frac{x+9}{7-4x} \\flip~x~and~y\\x=\frac{y+9}{7-4y} \\x(7-4y)=y+9\\7x-4xy=y+9\\-4xy-y=9-7x\\or\\4xy+y=7x-9\\y(4x+1)=7x-9\\y=\frac{7x-9}{4x+1} \\or~f^{-1}(x)=\frac{7x-9}{4x+1}

3 0
3 years ago
Simplify.
pishuonlain [190]

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For the other ones: They cannot be simplified further these would be "factored" or "cannot simplify further" if you are writing on paper.

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3 years ago
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An arc of a circle measures 80 degrees and the length of 88pie cm. what is the diameter?
kondor19780726 [428]
If             80°  ------> 88π cm
Then      360°  ------>  x cm

So:

x = (88π x 360) ÷ 80
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The relationship of Lenght of circle and its diameter is:

L = d .π 

replacing L:
396 π = d.π  ----> d = 396 cm  <---- here is your answer




  
5 0
3 years ago
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