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3 years ago

Find the least common denominator for these two rational expressions. 3/2n -2/5n

Mathematics

2 answers:

Zielflug [23.3K]3 years ago

8 0

Every rational expression can be written in infinitely many equvialent forms which is 3/3n-15/2.

zmey [24]3 years ago

3 0

For 2n and 5n the least common denominator will be 10n

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The area of a square can be represented by the expression x10 Which monomial represents a side of the square?

melisa1 [442]

$Area\: of \: square=side^2\\x^{10}=side^2\\side=\sqrt{x^{10}}\\side=\sqrt{x^2 \times x^2 \times x^2 \times x^2 \times x^2}\\side=x \times x \times x \times x \times x\\side=x^5$

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3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=10%20%5Cfrac%7B1%7D%7B2%7D%20%20%5Cdiv%201%20%5Cfrac%7B1%7D%7B4%7D%20" id="TexFormula1" title=

MrRissso [65]

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7 0

3 years ago

Brian has DVDs and CDs. The number of CDs he has can be modelled with the formula C = 2D + 11, where C represents the number of

wel

Answer: 15 DVDs

Step-by-step explanation:

C = 2D + 11

41 = 2D + 11

2D = 30

D = 15 DVDs

7 0

2 years ago

$4000 for 2years at 5% compounded quarterley

NeTakaya

$\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$4000\\
r=rate\to 5\%\to \frac{5}{100}\to &0.05\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{quarterly, meaning 4 times}
\end{array}\to &4\\

t=years\to &2
\end{cases}$

5 0

2 years ago

Please help!! circles combos are too hard

malfutka [58]

Answer:

56 + 53pi

Step-by-step explanation:

Area of small circles:

diameter of small circle: 4cm

forumla to find area of circle: A = pir^2

r is radius = half of diameter -> d/2 = 4 / 2 = 2cm

A = pi (2cm)^2

A = pi (4cm)

A = 4pi

Area of large circle:

diameter of small circle: 4cm

forumla to find area of circle: A = pir^2

r is radius = half of diameter -> d/2 = 14 / 2 = 7cm

A = pi (7cm)^2

A = pi (49cm)

A = 49pi

Area of rectangle:

Area = width x length

Area = 14cm x 4cm

Area = 56cm

Add all three areas:

Area of rectangle + large circle + small circle

56cm + 49pi + 4pi = 56cm + 53pi

7 0

2 years ago