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3 years ago

What value of x makes the following sentence true? x−5=12

Mathematics

2 answers:

Elza [17]3 years ago

7 0

Answer:

x=17

Step-by-step explanation:

Arisa [49]3 years ago

5 0

Answer:

The minus

Step-by-step explanation:

X-5 =12

X=12+5

X=17

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Find the slope of the equation.<br> 3x = -y − 5

Romashka [77]

Answer:

The slope of the equation is -3x

Step-by-step explanation:

3x = -y − 5

+ 5 + 5 Add 5 to both sides

3x + 5 = -y Divide both sides by -1

-3x + 5 = y

The slope of the equation is -3x

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3 years ago

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the bookstore has 6 shelves of books about animals. there are 30 books on each shelf. how many books about animals does the book

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It should be 5 on each shelf.

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4 years ago

Simplify the expression ((81y^-8)/(16x^20))^-1/4

Darina [25.2K]

$\bf ~~~~~~~~~~~~\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad 
a^n\implies \cfrac{1}{a^{-n}}
\\\\
-------------------------------$

$\bf \left( \cfrac{81y^{-8}}{16x^{20}} \right)^{-\frac{1}{4}}\implies \left( \cfrac{16x^{20}}{81y^{-8}} \right)^{\frac{1}{4}}\implies \left( \cfrac{2^4x^{20}}{3^4y^{-8}} \right)^{\frac{1}{4}}
\\\\\\
\textit{and now we'll distribute the exponent}\qquad \left( \cfrac{2^{4\cdot \frac{1}{4}}x^{20\cdot \frac{1}{4}}}{3^{4\cdot \frac{1}{4}}y^{-8\cdot \frac{1}{4}}} \right)
\\\\\\
\cfrac{2^1x^5}{3^1y^{-2}}\implies \cfrac{2^1x^5y^2}{3^1}\implies \cfrac{2x^5y^2}{3}$

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3 years ago

If the basic measuring unit in base-7 is 49 circles, what does the measuring unit of size .001seven look like

Serjik [45]

The measuring unit is the standard unit of a quantity

The measuring unit of size 0.001 is represented by one millionth circle

<h3>How to determine the unit of base 0.001</h3>

The basic measuring unit in base 7 is given as:

49 circles

The above can be represented as:

Base 7 = 49 circles

Represent the base with n.

So, we have the following rule

$Circle = n^2$

For measuring unit 0.001, we have:

$Circle = 0.001^2$

Evaluate the square

$Circle = 0.000001$

This means that,

The measuring unit of size 0.001 is represented by one millionth circle