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Lena [83]
2 years ago
13

Solve for x please I need help

Mathematics
2 answers:
ser-zykov [4K]2 years ago
8 0

Answer: picture wont seem to load, maybe try again

Step-by-step explanation:

MAVERICK [17]2 years ago
5 0

Answer:

x = 7.9

Step-by-step explanation:

Sin = Opposite over Hypotenuse

Thus,  sin(21)=\frac{x}{22}

* multiply each side by 22 *

\frac{x}{22} *22=x\\22sin(21)=7.9

we're left with x = 7.9 ( rounded )

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Answer:

Set; subset.

Step-by-step explanation:

A group of objects or numbers is called a set while a part of a set is called a subset. The objects or numbers that make up a set are generally referred to as elements or members and are written inside a pair of curly braces {}.

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On the other hand, a subset is a part of a larger set.

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3 years ago
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Find the cost of painting a cubical block of side length 3.2 cm, if painting costs $5 per cm2.
SashulF [63]
<h3><u>Answer</u>:- </h3>

\longrightarrow \sf \$ \: 307.2

<h3><u>Solution:-</u></h3>

Since painting is done on outer surface of cubical block we will have to find its surface area which is given by-

\green{ \underline { \boxed{ \sf{Surface \: area  \:of  \:Cube = 6a^2}}}}

  • <u>where a is side of the cube </u>

\begin{gathered}\\\quad \sf Surface \: area  \:of  \:Cube = 6\times(3.2)^2  \\\end{gathered}

\begin{gathered}\\\implies \quad \sf  6\times 3.2\times3.2   \\\end{gathered}

\begin{gathered}\\\implies \quad \sf  61.44 cm^2  \\\end{gathered}

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\maltese \sf Cost  \:of  \:painting \: 1 \: cm² = \$ 5

\sf Cost \: of \: painting \: 61.44  \:cm²=61.44×5

\sf\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad=\$ 307.2

\leadstoThus it would cost $ 307.2 to paint the entire cubical block.

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2 years ago
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