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Law Incorporation [45]
3 years ago
12

Pls answer the questions below

Mathematics
1 answer:
Vika [28.1K]3 years ago
6 0
1. 2
2. 2
3. 5
4. 1
5. 8
6. 2
7. -2
8. 2
9. 3
10. -1
11. -7
12. -2
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If x and y satisfy both 9x+2y=8 and 7x+2y=4, then y=?
Alex

Answer:

The value of y is -5

Step-by-step explanation:

we have

9x+2y=8 ------> equation A

7x+2y=4 ------> equation B

we know that

If x and y satisfy both equations, then (x,y) is the solution of the system of equations

Using a graphing tool

Remember that

The solution of the systems of equations is the intersection point both graphs

The intersection point is (2,-5)

therefore

The solution of the system of equations is the point (2,-5)

The value of y is -5

7 0
2 years ago
Please i need the answer
Harrizon [31]
Answer: b
sorry cant give explanation
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3 years ago
Which of the following functions best describes this graph?
Sedbober [7]

Step-by-step explanation:

The function that best describes the graph is y = (x - 1)² (C).

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3 years ago
Help anyone can help me do the question 4,I will mark brainlest.​
nasty-shy [4]

Answer:

Hello,

Step-by-step explanation:

A=(1,2)\\B=(0,-1)\\\overrightarrow{AB}=((0,-1)-(1,2)=(-1,-3)\ ||\overrightarrow{AB}||^2=1+9=10\\\overrightarrow{BC}=((3,-2)-(0,-1)=(3,-1)\ ||\overrightarrow{BC}||^2=9+1=10\\\\Triangle\ is\ isosceles.\\\\\overrightarrow{AB}.\overrightarrow{BC}=(-1,-3)*\left[\begin{array}{c}3\\-1\end{array}\right] =-3+3=0\\\\Triangle \ is\ right.\\\\

8 0
2 years ago
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A car can travel 234 miles on 26 gallons of gasoline. How far can it travel on 51 gallons?
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Answer:

459 Miles

Step-by-step explanation:

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