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disa [49]
3 years ago
15

Which expression can you substitute for in 12x +y=5 to solve the system below.

Mathematics
1 answer:
KatRina [158]3 years ago
8 0

Answer:

C

Step-by-step explanation: Since x is by itself in the first equation, we can substitute 12x + y = 5 into 12(6-y) + y = 5.

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The answers is B. 9,067
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Which equivalent form of g(x)=2x^2-12x-54 is the best form to find the zeros of the function?
Zarrin [17]

Answer:

g(x)=2(x-9)(x+3)

Step-by-step explanation:

6 0
3 years ago
Helene bought 6 bottles of juice. The bottles were on sale at 10 bottles for $12. Which explanation correctly tells how to calcu
Makovka662 [10]
<span>she wanted to buy 6 bottles.
the cost of 10 bottles was $12.
therefore we need to find the cost of one bottle and then find the cost for 6 bottles.                                           
if 10 bottles cost - $ 12                                                                                  
then 1 bottle costs - $ 12 / 10 bottles
                                         
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correct answer is therefore B. divide 12 by 10 and then mulitply by 6</span>
8 0
3 years ago
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What is the greatest and least
Kipish [7]
Greatest is the highest (biggest) number. Least is the lowest (smallest) number.
5 0
3 years ago
I NEED HELP PLEASE, THANKS! :)
natka813 [3]

Answer:

Step-by-step explanation:

Cos θ =<u> u*v     </u>

             IuI *IvI

u * v = 7*(-1) + (-2)*2

       = -7 - 4

      = -11

IuI = \sqrt{7^{2}+(-2)^{2}}\\

    = \sqrt{49+4}\\\\

    = \sqrt{53}

I vI = \sqrt{(-1)^{2}+2^{2}}\\

     = \sqrt{1+4}\\\\

      = \sqrt{5}\\

Cos θ = \frac{-11}{\sqrt{53}*\sqrt{5} } \\\\

          = \frac{-11}{16.28}\\\\

   Cos θ = -0.68

θ = 132.5°

3 0
3 years ago
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