Answer:
1.
centre(h,k)=(-13,9)
radius (r)=6
we have
equation of the circle is
(x-h)²+(y-k)²=r²
(x+13)²+(y-9)²=6²
x²+26x+169+y²-18y+81=36
x²+y²+26x-18y+169+81-36=0
x²+y²+26x-18y +214=0
is a required equation of the circle.
2.
centre(h,k)=(1,-1)
radius (r)=11
we have
equation of the circle is
(x-h)²+(y-k)²=r²
(x-1)²+(y+1)²=11²
x²-2x+1+y²+2y+1=121
x²+y²-2x+2y=121-2
x²+y²-2x+2y=119
is a required equation of the circle.
54 buttons ÷ 9 button cards = 6
She should buy 6 cards of buttons.
Answer:
238
Step-by-step explanation:
First, you have to figure out the area for each of the boxes, and then you add all of the areas together
Answer:
The expression that converts 8 radians to degree is: degrees = (8 rad)*180/pi
Step-by-step explanation:
To convert any number from radians to degrees we must use the equation below:
degrees = radians*180/pi
Therefore to convert 8 radians to degree we need to apply this value to the formula above:
degrees = 8*180/pi
degrees = 1440/pi
degrees = 458.366º
The expression that converts 8 radians to degree is: degrees = (8 rad)*180/pi
I'm going to get back to you after I answer this
