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2 years ago

Find the circumference of a lid with a radius of 0.3 inches.

Mathematics

2 answers:

stiks02 [169]2 years ago

7 0

The answer is 1.884956

katovenus [111]2 years ago

6 0

The Answer is:

C = 1.88

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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>

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

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

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

Now,

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

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

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

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

3 0

2 years ago

Simplify the expression where possible.<br><br> (-5 x 2 ) 3 help please!

MAXImum [283]

The answer to (-5 × 2) 3 = -30.

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2 years ago

PLSSSSSS HELP GIVING 10 POINTS

TEA [102]

Answer:

I'm pretty sure that it's C.

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2 years ago

Please Help , Thank You

olya-2409 [2.1K]

I'll go with A and B

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3 years ago

Read 2 more answers

Given the equation 7(x + 2) = 2x − 1, solve for the variable. Explain each step and justify your process. Jeff solved a similar

Galina-37 [17]

You have to distribute the 7 to x and 2 so :
7x+14=2x-1
Add one to both sides (inverse operations)
7x+14=2x-1
+1 +1
7x+15=2x
Cross Cancel by subtracting 7x from both sides
7x+15=2x
-7x -7x
15=-5x
Divide by -5
15/-5= -5/-5
X= -3

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2 years ago

Find the circumference of a lid with a radius of 0.3 inches.​

Find the circumference of a lid with a radius of 0.3 inches.