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Gekata [30.6K]
2 years ago
14

so i don't understand what we are doing at all. i was gone for a week and i missed when we learned about this and i've just been

to embarrassed to ask. can someone explain it to me? and maybe answer the question while your at it? please

Mathematics
2 answers:
kumpel [21]2 years ago
6 0
You will need the fraction on “z” to have a common denominator before you can add the two equations. In this equation the common denominator is 6. So you do not change the left side of the equation however the right side turns into -2/6. Now you can add the z’s together and you can also add the integers together.



After simplification I believe the final answer is 1/2z + 1.

I would maybe wait for someone else to answer so that you can be sure because there are other ways to solve this.
Rainbow [258]2 years ago
6 0

Answer:

the final answer is 1/2z + 1.

Step-by-step explanation:

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Given $dc = 7$, $cb = 8$, $ab = \frac{1}{4}ad$, and $ed = \frac{4}{5}ad$, find $fc$. Express your answer as a decimal.
Pachacha [2.7K]

A ↔ B ↔ C ↔ D ↔ E ↔ F

 \frac{1}{4} AD      8      7      \frac{4}{5} AD   ???

AB + BC + CD = AD   <em>segment addition postulate</em>

\frac{1}{4} AD   +   8   +   7   = AD

\frac{1}{4} AD   +       15        = AD

AD         + 60    = 4AD

                  60    = 3AD

                  20    = AD

AB =  \frac{1}{4} AD    =  \frac{1}{4}(20)    = 5

DE =  \frac{4}{5}AD   =  \frac{4}{5}(5)    = 4

CD + DE + EF = CF   <em>segment addition postulate</em>

7   +   4   + EF  = CF

     11        + EF  = CF

Answer: 11 + EF

Note: You did not provide any info about EF.  If you have additional information that you did not type in, calculate EF and add it to 11 to find the length of CF.

7 0
3 years ago
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Please help!! <br> What is the solution to 2x^2+x+2=0?
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Answer:

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Step-by-step explanation:

\frac{-1+/-\sqrt{1-4(2)(2} )}{2(2)}

{\frac{-1+/-\sqrt{1-16} }{4}}

{\frac{-1+/-\sqrt{-15} }{4}}

{\frac{-1+/-i\sqrt{15} }{4}}

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A. Sugar And Brown Sugar (For Cookies)


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Why did the tennis player decide to get glasses?
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Answer:

becuae he couldent see sorry i had to do that

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Alina [70]

Answer:

It is 20

Step-by-step explanation:

1+1= 2*20=40

40/2=20

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3 years ago
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