x2+y2−2x−80=0
Write the problem as a mathematical expression.x2+y2−2x−80=0
Add 80 to both sides of the equation. x2+y2−2x= 80 Complete the square for x2− 2x. Tap for more steps...(x−1)2−1 Substitute (x−1)2−1 for x−2x in the equation x2+y2−2x =80 .(x−1)2−1+y2=80 Move −1 to the right side of the equation by adding 1 to both sides.(x−1)2+y2=80+1Add 80 and 1.(x−1)2+y2=81
This is the form of a circle. Use this form to determine the center and radius of the circle.(x−h)2+(y−k)2=2Match the values in this circle to those of the standard form. The variable r represents the radius of the circle, h represents the x-offset from the origin, and k represents the y-offset from origin.r=9h=1k=0 The center of the circle is found at (h,k). Center: (1,0)These values represent the important values for graphing and analyzing a circle. Center: (1,0)Radius: 9
Answer:
X=2
EF = 21
Step-by-step explanation:
19x-17= 51-15x
34x = 68
X=2
EF = 51- 15(2)=21
Answer:
w = 2.5 cm
Step-by-step explanation:
The area (A) of the triangle is calculated as
A = bh ( b is the base and h the height )
Here b = 5 and h = 6, thus
A = 0.5 × 5 × 6 = 15 cm²
Thus the area of the rectangle is 15 cm²
A = lw ( l is the length and w the width )
Here l = 6 and w is to be found
6w = 15 ( divide both sides by 6 )
w = 2.5 cm
Answer:
Step-by-step explanation:
Given:
Required
Represent as ratio
Let chocolate be represented with a and vanilla be represented with b
So, we have:
Divide ratio by 2
Hence, the required ratio is
Answer:
The answer is 16,700.
Step-by-step explanation:
9, tens place digit can change a 6 since a number 5 - 9 can add one to the digit 1 place to the left which is the hundreds, 6.
6 + 1 = 7.
Which means, the answer rounded is 16,700