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azamat
3 years ago
6

What is the formula of the surface area solved for r?

Mathematics
2 answers:
OLEGan [10]3 years ago
6 0

Answer:

<h2><em><u>Option</u></em><em><u> </u></em><em><u>C</u></em><em><u> </u></em></h2>

Step-by-step explanation:

It is the correct answer I explained in your next question

natulia [17]3 years ago
5 0
D

This is the best answer for this question
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The ratio of the interior angles of a triangle is 2:3:5. What are the angle measures
Talja [164]
2:3:5
2x+3x+5x=180
10x=180
x=18
2x=36
3x=54
5x=90
6 0
4 years ago
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A city survey of two neighborhoods asked residents whether they would
masha68 [24]

Answer: 25

Step-by-step explanation:

look at the question

4 0
3 years ago
The age of a boy is twice that of his sister. five years ago the boy was 3 times the age of his sister. How old is the boy
joja [24]

<em>Answer</em><em>:</em>

<h2><em>2</em><em>0</em><em> </em><em>years</em><em> </em><em>old</em><em>.</em></h2>

<em>Sol</em><em>ution</em><em>,</em>

<em>Let</em><em> </em><em>the</em><em> </em><em>age</em><em> </em><em>of</em><em> </em><em>sister</em><em> </em><em>be</em><em> </em><em>X</em>

<em>Let</em><em> </em><em>the</em><em> </em><em>age</em><em> </em><em>of</em><em> </em><em>boy</em><em> </em><em>be </em><em>2</em><em>x</em>

<em>Now</em><em>,</em>

<em>Five</em><em> </em><em>years</em><em> </em><em>ago</em><em>,</em>

<em>3(x - 5) = 2x - 5 \\ or \: 3x - 15 = 2x - 5 \\ or \: 3x - 2x =  - 5 + 15 \\ x = 10</em>

<em>Again</em><em>,</em>

<em>Repla</em><em>cing</em><em> </em><em>value</em><em>,</em>

<em>age \: of \: boy = 2x \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 2 \times 10 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 20</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em>

<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em>

7 0
3 years ago
0.75(3.55a - 6b) simplified please ​
GREYUIT [131]

Answer:

Step-by-step explanation:

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3 0
3 years ago
Please help me!!!!! Show your work 45-45-90 method &lt;3
aivan3 [116]

Answer:

hope it helps and u understand

check the steps in picture attached

7 0
2 years ago
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