Iwant to know how to calculate the radius, im very confused.

the cones below are similar, although not drawn to scale
(smaller cone) (larger cone)
height is 12 ft height is 15 ft r
radius is 8 ft radius not given

what is the lenght of the radius of the larger cone?

a= 10ft
b=11ft
c=12ft
d=13ft

1 0 10

a 10 ft

Step-by-step explanation:

To find the height of similar shapes, write a proportion of equal ratios.

Cross multiply to solve for y.

12y = 15(8)

12y = 120

y=10

answer: was that a question or answer?

step-by-step explanation:

geometric series converge the common ratio r has magnitude less than one.

which is equivalent to

for the example we need

|2-x| < 1

-1 < 2-x   and 2-x < 1

x < 3 and x > 1

we can write that

answer: 1 < x < 3

1a. common ratio r=250/25=10 > 1     diverges

1b.   r=50/100=1/2 converges

when these converge they converge to

where a is the first term.

answer: 200

1c. r=-1   so it's not the case that |r| < 1.     diverges

2a. x is the common ratio so we converge when |x|< 1

2b.   r=-10x / -2 = 5x.

we converge when

|5x| < 1

|x| < 1/5

2c.   r=3-2x

-1 < 3-2x and 3-2x < 1

-4 < -2x and 2 < 2x

x < 2 and 1 < x

1 < x < 2

2d. [/tex] r=-48x^3/12 = 4x^3[/tex]

|4x^3| < 1

|x^3| < \frac 1 4

|x| < 4^{-1/3}