(x+2)² +(y+10)² =4
(x-h)² +(y-k)² =r²
(x-(-2))² +(y-(-10))² =2²
h=-2,
k=-10
Center is (-2, -10).
Radius r=2.
Answer C. Center is (-2, -10), r=2.
Answer:
Step-by-step explanation:
-10x+7(-6)=18
-10x-42=18
+42 +42
___________
-10x/-10=60/-10
x= -6
Answer:
x^4 + 4x^3 + 6x^2 + 7x +2
Step-by-step explanation:
x^2 x x^2 = x^4
x^2 x x = x^3
x^2 x 2 = 2x^2
3x x x^2 = 3x^3
3x x x = 3x^2
3x x 2 = 6x
1 x x^2 = x^2
1 x x = x
1 x 2= 2
x^4 + 4x^3 + 6x^2 + 7x +2
Answer: range= 26, variance= 80 and standard deviation= 8.94
Step-by-step explanation:
Range = highest - lowest
Range = 146 - 120
Range= 26
Let m be mean
M=mean=sum/n
Mean=(120+134+146+127+138+133) / 6
M=798/6
M=133
The standard deviation sample formula:
S.D = sqrt( Summation of |x-m|^2 / n-1)
Let start finding:
|x-m|^2
For 1st: |120-133|^2=169
For 2nd: |134-133|^2=1
For 3rd: |146-133|^2=169
For 4th: |127-133|^2=36
For 5th: |138-133|^2=25
For 6th: |133-133|^2=0
Summation of |x-m|^2 = 400
The standard deviation formula is :
S.D = sqrt( Summation of |x-m|^2 / n-1)
S.D= sqrt(400 / 5)
S.D=sqrt(80)
S.D= 8.94
Variance = (Summation of |x-m|^2 / n-1)
Variance= 400/5
Variance= 80
Answer:
If the diameter or radius of one circle is the same as another circle they are congruent.
