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3 years ago

Hi guys guess any two song

Mathematics

2 answers:

Lunna [17]3 years ago

5 0

Answer:

Step-by-step explanation:

let me love you song,maybe

yulyashka [42]3 years ago

4 0

Answer:

Numbers by Melanie Martinez

Step-by-step explanation:

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The circumference of the base of a cylinder is 24π mm. A similar cylinder has a base with circumference of 60π mm. The lateral a

lukranit [14]

Answer:

Lateral area of the smaller cylinder = 33.6 π mm²

Step-by-step explanation:

Circumference of the base of a cylinder is 24π mm . A similar cylinder has a base with circumference of 60π mm. Since we are dealing with the circumference of two similar cylinder we need to know the scale factor.

The square factor can be expressed as follow

Scale factor is the ratio between the larger circumference of the larger cylinder to the circumference of the smaller cylinder.

Scale factor = 60π/24π = 2.5

The lateral area of the larger cylinder = 210π mm².

The scale factor squared is equal to the ratio of the larger cylinder surface area to the smaller cylinder surface area.

Therefore,

2.5² = 210π/a

where

a = surface area of the smaller cylinder

cross multiply

6.25 a = 210π

divide both sides by 6.25

a = 210π/6.25

a = 33.6 π mm²

Lateral area of the smaller cylinder = 33.6 π mm²

8 0

3 years ago

Amy has 5 yd of border to put around a garden. She uses all the border to make four sections that are the same length. Which exp

Lina20 [59]

Answer:

4÷5 is the answer

Step-by-step explanation:

hope its helps

7 0

3 years ago

Select the correct answer. 2 Jay stores hay in cubic stacks on his farm. If the length of each stack is 3 yard, what is the volu

Maurinko [17]

Cubic stack would mean all the sides are the same length.

The length of the side is given as 3 yards.

Volume = 3^3 = 3 x 3 x 3 = 27

Volume = 27 cubic yards.

3 0

3 years ago

sanjay's dog weighs 46 pounds on earth multiply the dogs earth weight by 0.38 to find how much it would weigh on mars, and by 2.

Roman55 [17]

The dog weighs 17.48 pounds on Mars and 108.56 pound on Jupiter. Therefor, it will weigh 91.08 pounds less on Mars than on Jupiter.

6 0

3 years ago

The sum of the first n terms of a geometric series is 364? The sum of their reciprocals 364/243. If the first term is 1, find n

Afina-wow [57]

If the geometric series has first term $a$ and common ratio $r$ , then its $N$ -th partial sum is

$\displaystyle S_N = \sum_{n=1}^N ar^{n-1} = a + ar + ar^2 + \cdots + ar^{N-1}$

Multiply both sides by $r$ , then subtract $rS_N$ from $S_N$ to eliminate all the middle terms and solve for $S_N$ :

$rS_N = ar + ar^2 + ar^3 + \cdots + ar^N$

$\implies (1 - r) S_N = a - ar^N$

$\implies S_N = \dfrac{a(1-r^N)}{1-r}$

The $N$ -th partial sum for the series of reciprocal terms (denoted by $S'_N$ ) can be computed similarly:

$\displaystyle S'_N = \sum_{n=1}^N \frac1{ar^{N-1}} = \frac1a + \frac1{ar} + \frac1{ar^2} + \cdots + \frac1{ar^{N-1}}$

$\dfrac{S'_N}r = \dfrac1{ar} + \dfrac1{ar^2} + \dfrac1{ar^3} + \cdots + \dfrac1{ar^N}$

$\implies \left(1 - \dfrac1r\right) S'_N = \dfrac1a - \dfrac1{ar^N}$

$\implies S'_N = \dfrac{1 - \frac1{r^N}}{a\left(1 - \frac1r\right)} = \dfrac{r^N - 1}{a(r^N - r^{N-1})} = \dfrac{1 - r^N}{a r^{N-1} (1 - r)}$

We're given that $a=1$ , and the sum of the first $n$ terms of the series is

$S_n = \dfrac{1-r^n}{1-r} = 364$

and the sum of their reciprocals is

$S'_n = \dfrac{1 - r^n}{r^{n-1}(1 - r)} = \dfrac{364}{243}$

By substitution,

$\dfrac{1 - r^n}{r^{n-1}(1-r)} = \dfrac{364}{r^{n-1}} = \dfrac{364}{243} \implies r^{n-1} = 243$

Manipulating the $S_n$ equation gives

$\dfrac{1 - r^n}{1-r} = 364 \implies r (364 - r^{n-1}) = 363$

so that substituting again yields

$r (364 - 243) = 363 \implies 121r = 363 \implies \boxed{r=3}$

and it follows that

$r^{n-1} = 243 \implies 3^{n-1} = 3^5 \implies n-1 = 5 \implies \boxed{n=6}$

5 0

2 years ago

Hi guys guess any two song​

Hi guys guess any two song