Answer:
1 pi: 3pi
Step-by-step explanation:
Step 1: Formula of surface area and volume of sphere
Surface area of sphere = 4 x pi x r^2
Volume of sphere = <u>4</u> x pi x r^3
3
Step 2: Apply values in the formula
r = radius
radius = diameter/2
r=18/2 = 9
S.A = 4 x pi x 9^2
S.A = 324pi
Volume = <u>4</u> x pi x 9^3
3
Volume = 972pi
Step 3 : Show in ratio
Surface area : Volume
324pi : 972pi
= 1 pi: 3pi
Answer:
Step-by-step explanation:
El precio original del vestido es,
72 dolares
<h3>
Answer: Choice C) 31</h3>
==============================================
Explanation:
The recursive rule
f(n+1)=f(n)-3
can be rearranged to
f(n) = f(n+1)+3
after adding 3 to both sides
----------------
Now let's say we plug in n = 3
f(n) = f(n+1)+3
f(3) = f(3+1)+3
f(3) = f(4)+3
f(3) = 22+3
f(3) = 25
Repeat for n = 2
f(n) = f(n+1)+3
f(2) = f(2+1)+3
f(2) = f(3)+3
f(2) = 25+3
f(2) = 28
Each time we keep adding 3 to get the previous term (since the original recursive rule says to subtract 3 to get the next term; we just go backwards of what the instructions say).
Lastly, we can find that f(1) = f(2)+3 = 28+3 = 31 making the answer to be choice C.
Answer:
A) P = 6n + 8
Step-by-step explanation:
Given:
Perimeter of the 1 triangle = 24
Perimeter of the 2 triangle = 30
Perimeter of the 3 triangle = 36
Let's check with option A.
P = 6n + 18, where "n" is the number in the figure.
Plug in n = 1, we get
P = 6(1) + 18
= 6 +18
P = 25 True.
Plug in n =2, we get
P = 6(2) + 18
= 12 +18
P = 30 True.
Plug in n =3, we get
P = 6(3) + 18
P = 18 + 18
P = 36, true.
Therefore, the answer is A. P = 6n + 18
Thank you.
The answer is A because an octagon has 8 sides and if each side is 4 feet you would multiply 4 times 8 and get 32.
