Step-by-step explanation:
C =2pi*(d/2) A = pi (d/2)^2
Part A
A B
25.12 = 2pi *(8/2) 9.42 = 2pi (3/2)
25.12 = 8pi 9.42 = 3pi
pi = 25.12 / 8 pi = 9.42 / 3
pi ≈ 3.14 pi = 3.14
Part B
A B
50.24 = pi (8/2)^2 7.065 = pi (3/2)^2
50.24 = pi *4^2 7.065 = pi (9/4)
50.24 = 16 pi 7.065 ( 4/9) = pi
50.24/16 = pi pi = 3.14
pi = 3.14
Part C
We see that pi is the constant ≈ 3.14
1.) 4, 2, 1, 1/2, 1/4,... 2.)2, 6, 18, 54, 162, ...
3.) -4, -16, -64, -256, ... are geometric sequences because common ratio is same. Example: 1.) ratio of 1st and 2nd term is 1/2. Similarly ratio of 3rd and 4th term is 1/2 and so on.
<em>(-4/9)*3×(-27/20)*4=</em><em> </em><em>7</em><em>.</em><em>2</em>
Answer:
Volume of the solid figure = 1131 cubic inches
Step-by-step explanation:
Volume of solid figure = Volume of half cylindrical prism + Volume of the rectangular prism
Volume of half cylindrical prism =
=
= 339.29 cubic inch.
Volume of the rectangular prism = (length × width × height)
= 11 × 6 × 12
= 792 cubic inches
Volume of the solid figure = 339.29 + 792
= 1131.29
≈ 1131 cubic inches
It is 7-7-77-8-7-7-7777-75a