Use completion of sq method
x^2+y^2+14x+10y-7=0
(x+7)^2+(y+5)^2=7+49+25
(x+7)^2+(y+5)^2=81
so centre is(-7,-5) radius is9
The solutions of the equations are x = 1 and y = 2
The system of equations are
4x + 3y = 10
-4x + 5y = 6
Here we have to use the elimination method. Eliminate the x term and find the value of y term
Add both equation
3y + 5y = 10 +6
Add the like terms
8y = 16
y = 16 / 8
Divide the terms
y = 2
Substitute the value of x in the first equation
4x + 3y = 10
4x + 3×2 = 10
Multiply the terms
4x + 6 = 10
4x = 10 - 6
4x = 4
x = 4 / 4
Divide the terms
x = 1
Hence, the solutions of the equations are x = 1 and y = 2
Learn more about elimination method here
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Answer:312
Step-by-step explanation: multiply 6*4*13
Answer:
108 pens
Step-by-step explanation:
48/4=x/9
4x=432
x=108
Answer:
Step 1: Address input parameters & values.
Input parameters & values:
The fraction number = 37/99
Step 2: Write it as a decimal
37/99 = 0.3737
0.3737 is the decimal representation for 37/99
Answer is 0.3737 repeating.
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