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ddd [48]
3 years ago
7

Um plz help me yeeeeeeeeeeeeeeeeeet

Mathematics
2 answers:
Zolol [24]3 years ago
7 0
-7.2n + 7.9 I’m pretty sure I don’t know for sure thou
lutik1710 [3]3 years ago
5 0

Answer:

3.3

Step-by-step explanation:

2.9 - 4.2n - 3n + 5

2.9 - 1.2n + 5

2.9 - 6.2

= 3.3

I think im wrong but hope this helps ig.

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Multiply the additive inverse of (-7/8) by the reciprocal of (5 1/2)​<br><br>PLEASE HELP!
EleoNora [17]

Answer:

\bold {$\dfrac{7}{44}$}

Step-by-step explanation:

<h3> Reciprocal:</h3>

    \sf \text{The reciprocal of any number $\dfrac{a}{b}$ is given by $\dfrac{b}{a}$}\\\\5\dfrac{1}{2}=\dfrac{11}{2}\\\\\text{Reciprocal of $\dfrac{11}{2}$  = $\dfrac{2}{11}$}

<h3>Additive inverse:</h3>

 \text{Additive inverse of $\dfrac{-7}{8}$=$\dfrac{7}{8}$}

        Now multiply,

          \sf \dfrac{7}{8}*\dfrac{2}{11}=\dfrac{7}{4}*\dfrac{1}{11}\\

                      =\dfrac{7}{44}

7 0
2 years ago
Solution to (x-2) (x+10) = 13
Grace [21]

Answer:

-11,3

Step-by-step explanation: using foil (x-2)(X+10)=x^2+8x-20

x^2+8x-20-13=13-13 X^2+8x-33=0 factoring you get (x+11)(x-3)=0 so x+11=0

x-3=0

x=-11,3

if you found this helpful please thank me

4 0
3 years ago
David and Mary split the cost of a pound each of jelly beans,gundrops,andpeppermints. how much they pay?
Nikitich [7]

How much was the total?

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3 years ago
Which is the safest way to invest money?
Andru [333]
What are the choices?
5 0
3 years ago
Which number line represents the sulotions to |x-2|=6
FinnZ [79.3K]

Answer: x = 8, -4

Step-by-step explanation:

3 0
3 years ago
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