It could b a or c depend on what grade you are in
Just create a problem and figure it out.
Let's say the original diameter is 4. This means the radius is 4/2 = 2.
A = 2πr^2
A = 2π(2)^2
A = 2π(4)
A = 8π
The new diameter is 50% larger than the original.
50% of 4 is 2. 2 + 4 = 6. So the new diameter is 6. The radius is 6/2 = 3.
A = 2πr^2
A = 2π(3)^2
A = 2π(9)
A = 18π
Old area was 8π, new area is 18π. Now divide the difference from the original area:
18π - 8π = 10π
10π/8π = 1.25 * 100 = 125%
Answer:
c=7.75
Step-by-step explanation:
First distribute the 4 on the right side
7=4(c-6)
7=4c-24
Add 24 on both sides
31=4c
Divide by 4 on both sides
c=7.75
Hope this helps!
X= 100 degrees. sorry if i answered too late
Answer:
B
Step-by-step explanation:
V = (4/3) pi r^3
V = 1.333 * 3.14 * 11^3
11^3 = 1331
V = 1.333 * 3.14 * 1331
V = 5572
