Answer:
4
Step-by-step explanation:
The sum to n terms of a geometric sequence is
= 
where a is the first term and r the common ratio
Here r = 5 and a has to be found, thus
=
, so
= 15624
Multiply both sides by 4
15624a = 62496 ( divide both sides by 15624
a = 4
3:2. There's a total of 9 shapes, 6 triangles, and 3 circles.
Next, you take the ratio of 9:6 and divide each number by 3, one at a time.
V=1/3(pi)(r)^2(h)
V=1/3(pi)(9)^2(15)
V=1/3(3.14)(81)(15)
Then multiply all numbers in parentheses:
3815.1/3=1271.7 cm^3
Hope this Helps!
Answer:
d.interserting i believe
Step-by-step explanation:
So hope it goes well but the answer is 11