Answer:
C ≈ 54
Step-by-step explanation:
The circumference (C) is calculated as
C = πd ( d is the diameter )
Here d = 18 , then
C = π × 18 ≈ 3 × 18 = 54
Answer:
<N = 73 degrees
Step-by-step explanation:
By vertical angle
Answer: Im sorry im bad at mafs
Step-by-step explanation:
Answer:
bigger number is 18
smaller number is 6
Step-by-step explanation:
let x be the bigger number and y the smaller
the sum of two numbers is the same as four times the smaller
x+y=4y
x=4y-y
x=3y--------i
if twice the larger is decreased by the smaller, the result is 30
2x-y=30----ii
substituting i for x in ii
2(3y)-y=30
6y-y=30
therefore
5y=30
y=30/5
y=6------iii
substituting iii for y in i to solve for x gives
x=3*6
=18
Answer: 79
Step-by-step explanation: Lets first deal with the X. The equation would be 3 X 3 X 9. This answer is 81. Next we have 81 - 2. Therefore, our answer is 79. Do multiplacation first as M is before S in peMdaS.