2. . X + 3 X + 18 X +4 X=

The number of subscribers y to a website after t years is shown by the equation below:

choli [55]

$\bf \qquad \textit{Amount for Exponential Growth}\\\\
A=I(1 + r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
I=\textit{initial amount}\\
r=rate\to r\%\to \frac{r}{100}\\
t=\textit{elapsed time}
\end{cases}\\\\
-------------------------------\\\\
y=50(1.75)^t\implies 
\begin{array}{llllll}
y=&50(&1+&0.75)&^t\\
\uparrow &\uparrow &&\uparrow &\uparrow \\
A&I&&r&t
\end{array}\qquad \cfrac{r}{100}=0.75
\\\\\\
r=100\cdot 0.75\implies \boxed{r=75\%}$

the amount is a positive "r", rate, thus is a growth equation, so it increased.

5 0

4 years ago

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Simplify each ratio to lowest terms.

Vikki [24]

Answer:

This is your work so i cant do it but I can give you a hint divide both the numerator and deomonator to get simplified form

Step-by-step explanation:

3 0

3 years ago

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Please answer this correctly

natulia [17]

Answer:

Brainleist!

Step-by-step explanation:

10 marbles total

8 are either purple or orange

8/10 or 4/5 or 80% or 0.8

80 x 0.8 = 64

4 0

4 years ago

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Find the volume of a cylinder with diameter 8 inches and height 9 1/2 inches

marta [7]

Answer:

$V=152\pi in^{2}$ in terms or pi

$V=477.52in^{2}$ simplified

Step-by-step explanation:

To solve this, we are using the Cylinder's volume formula:

$V=\pi r^{2} h$

where

$V$ is the volume of the cylinder

$r$ is the radius of the cylinder

Remember that radius is half the diameter, so we can divide the diameter of our cylinder by 2 to find its radius: $r=\frac{d}{2} =\frac{8in}{2} =4in$ . Now, 9 1/2 inches is 9 and a half inches, so $h=9.5in$ .

Replacing values:

$V=\pi (4in)^{2} (9.5in)$

$V=\pi (16in^{2})(9.5in)$

$V=152\pi in^{2}$

$V=477.52in^{2}$

We can conclude that the volume of our cylinder is $V=152\pi in^{2}$ in terms of pi, or $V=477.52in^{2}$ simplified.

4 0

3 years ago

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What is the common difference, d, in the arithmetic sequence defined by the formula below? an=2n+1

marishachu [46]

<h3>Answer:</h3>

d = 2

<h3>Solution:</h3>

We are given that the arithmetic progression is defined by :

➝ 2n + 1

Therefore, 

For first term

➙ n = 1

➝ 2 × 1 + 1

➝ 2 + 1

➝ 3

For second term

➙ n = 2

➝ 2 × 2 + 1

➝ 4 + 1

➝ 5

Common difference

➙ 2nd term - 1st term

➝ 5 - 3

➝ 2

<h3>More information:</h3>

The difference between the successive term and the preceding term is the difference of an arithmetic progression. It is always same for the same arithmetic progression.

5 0

2 years ago