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Fudgin [204]
2 years ago
6

Solve the system below, choose the x and y answers from the list below.

Mathematics
1 answer:
Bumek [7]2 years ago
5 0

Answer:

y=2, x=-1

Step-by-step explanation:

We can add the two equations together to eliminate x:

6x+5y+(-6x)+7y=4+20

12y=24

y=2

We plug y into the first equation and get

6x+5(2)=4

6x+10=4

6x=-6

x=-1

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Simplify the square root of -121?
poizon [28]

Answer:

11<em>i</em>

Step-by-step explanation:

first you have to get a postive root.

\sqrt{-121} \\ \sqrt{-1}  \sqrt{121} \\

then you solve the square roots from there, keeping in mind the imaginary number answer to the square root of -1, <em>i</em>.

\sqrt{-1} = i\\ \sqrt{121} =11\\ 11i

8 0
3 years ago
Read 2 more answers
Someone explain this?
nadya68 [22]

5\sqrt{96}.
I converted it into decimal form with a calculator and got approximately 48.9898

And if you round that, you will get the 49, which fits the inequality of

45<  5\sqrt{96} < 50 since it becomes 45 < 49 < 50 which is true

8 0
2 years ago
Read 2 more answers
How do you find the missing number of a perfect square trinomial?<br><br> 25x^2 - 60x + ___
Harrizon [31]

Answer:

  36

Step-by-step explanation:

Compare what you have to the square ...

  (a +b)^2 = a^2 +2ab +b^2

Your "a" is √(25x^2) = 5x

Your "2ab" is -60x. Since you know "a", you can find "b".

  2ab = -60x

  2(5x)b = -60x . . . . . . . substitute for "a"

  b = -60x/(10x) = -6

Then the missing term is b^2 = (-6)^2 = 36.

Your trinomial is ...

  25x^2 -60x +<u>36</u>

4 0
3 years ago
Activity 1: Performance task continued
ANTONII [103]

Answer:

Um wat?

Step-by-step explanation:

6 0
3 years ago
What does b equal in1.5 + b - 0.25= -3.5
Dominik [7]
I think b= -4.75 in this equation
7 0
3 years ago
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