9514 1404 393
Answer:
(x +1)^2 +(y -3)^2 = 4
Step-by-step explanation:
The equation of a circle centered at (h, k) with radius r is ...
(x -h)^2 +(y -k)^2 = r^2
The graphed circle is centered at (h, k) = (-1, 3), and has radius 2, so its equation is ...
(x +1)^2 +(y -3)^2 = 4
Answer:
20 in³
Step-by-step explanation:
Volume of 300 pages:
10 × 8 × 3/4
When the no. of pages change, only the thickness of the book changes:
Volume = 10 × 8 × ¼
= 20 in³
Answer:
Step-by-step explanation:
The formula for determining the the area of a sector is expressed as
Area of Sector = θ/360 × πr²
Where
θ represents the central angle.
π is a constant whose value is 3.14
r represents the radius of the circle.
From the information given,
The central angle is π/7 radian. Converting to degrees, it becomes
π/7 × 180/π = 180/7 = 25.714 degrees.
Area of sector = 77 square meters
Therefore
77 = 25.714/360 × 3.14 × r²
77 = 0.2243r²
r² = 77/0.2243 = 343.29
r = √343.29 = 18.53 meters
Answer:
Expand 
Step-by-step explanation:
Apply the distributive law: 
Apply minus - plus rules:
Multiply the numbers: 
Hope this helps! If so, may I get Brainliest and a Thanks?
Thank you, have a good one! =)
