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a_sh-v [17]
3 years ago
6

I will give brainliest!! please help!!!

Mathematics
1 answer:
hram777 [196]3 years ago
6 0

Answer:

Yes

No

Yes

No

No

Im pretty sure its like that dont hate if i get one wrong

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Choose the solution(s) of the following system of equations x2 + y2 = 6 x2 – y = 6
ElenaW [278]
<h2>Answer</h2>

x=\sqrt{6}, y=0\\ x=-\sqrt{6} , y=0\\x=\sqrt{5} , y=-1\\x=-\sqrt{5} , y=-1

Or as ordered pairs: (\sqrt{6} ,0),(-\sqrt{6} ,0),(\sqrt{5} ,-1),(-\sqrt{5} ,-1)

<h2>Explanation</h2>

Lets solve our system of equations  step by step

x^2+y^2=6 equation (1)

x^2-y=6 equation (2)

1. Solve for x^2 in equation (2)

x^2-y=6

x^2=6+y equation (3)

2. Replace equation (3) in equation (1) and solve for y

x^2+y^2=6

6+y+y^2=6

y^2+y=0

y(y+1)=0

y=0 or y=-1

3. Replace the values of y in equation (3) and solve for x

- For y=0

x^2=6+y

x^2=6

x=\sqrt{6} or x=-\sqrt{6}

- For y=-1

x^2=6+y

x^2=6-1

x^2=5

x=\sqrt{5} or x=-\sqrt{5}

So, the solutions of our system of equation are:

x=\sqrt{6}, y=0\\ x=-\sqrt{6} , y=0\\x=\sqrt{5} , y=-1\\x=-\sqrt{5} , y=-1

6 0
3 years ago
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Use the quadratic function to predict y if x equals 7.<br> y = 2x2 – 3x + 3
zheka24 [161]

Answer:

80

Step-by-step explanation:

f(7)=2(7)^{2} -3(7)+3

= 2(49)-21+3\\=98-21+3\\=80\\

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Do 20 times 4 then u have your answer
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Karo-lina-s [1.5K]
A. 2:1
B. 1:4
C. 1:2
D. 1:5
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How do I solve 8m+13m&gt;42
choli [55]
8+13=21
so 21m>24
42÷21
m>2
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3 years ago
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