Hello,
x²+y²-10x+6y+18=0
==>(x²-2*5x+25)+(y²+2*3y+9)+18-25-9=0
==>(x-5)²+(y+3)²=16
Radius is 4.
Center (5,-3)
Step-by-step explanation:
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Answer: The required value of x is 1.
Step-by-step explanation: We are to use the Cramer's rule to find the value of x in the following system of equations :
By Cramer's rule, we get
where
Therefore, we get
Thus, the required value of x is 1.
Answer:
Hi there!
The correct answer is: 220.5 cm²
Step-by-step explanation:
This is an example of a composite figure where you have to break up the figure into different shapes. In this case this figure, can break up into a semicircle and a triangle.
<u>Triangle:</u> A= 1/2bh A=1/2(16)(15) = 120 cm²
<u>Semicircle: </u>another way of saying half a circle so A= 1/2 πr²
A=(1/2)(π)(8)² = 100.5 cm²
And then you just add the two areas together and you get 220.53 cm²
