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Harrizon [31]
3 years ago
14

Please help!!!!!!!!!!!

Mathematics
2 answers:
marishachu [46]3 years ago
8 0

Answer:

23.4

Step-by-step explanation:

you use the equation for pythagorean theorem which is a^2+b^2=c^2 and plug in 12 and 18 into the a and b values to get 15^2+18^2=c^2 then you find the numbers squared so 225+324=c^2 add. 549=c^2 find square root. 23.4 rounded.

Andrew [12]3 years ago
3 0
23.4 is the correct answer.
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8 0
3 years ago
Read 2 more answers
In this figure, 52. 9% of the area is painted yellow. How much of the area is painted yellow?22. 218 in²25. 921 in²44. 436 in²48
Paraphin [41]

Answer:

its 48.139

Step-by-step explanation:

i also needed help , but i only saw this so i guessed the answer and it is 48.139.

5 0
2 years ago
The electrical resistance of a wire varies directly with the length and inversely with the square of the diameter of the wire. I
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4 years ago
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The total surface area of a hemisphere is 45<br><img src="https://tex.z-dn.net/?f=%5Cpi%5Cp" id="TexFormula1" title="\pi\p" alt=
rjkz [21]

Answer:

The volume of the hemisphere  

       V = 121.33086 cubic centimeter

Step-by-step explanation:

<u>Step(i)</u>:-

Given that the total surface area of a hemisphere = 45π cm²

<em> The total surface area of a hemisphere = 3π r²</em>

Equating

              3π r² = 45π

                   r^{2} = \frac{45}{3} =15

                    r = \sqrt{15} = 3.87

The radius of the sphere 'r' = 3.87

<u><em>Step(ii):-</em></u>

<em>The volume of the hemisphere</em>

                 V = \frac{2}{3} \pi r^{3}

                V = \frac{2}{3} \pi (3.87)^{3}

we know that   π = 3.14

                V = \frac{2}{3}  (3.14) (3.87)^{3}

               V = 121.33086 cubic centimeter

               

         

7 0
3 years ago
Someone please help me
IgorC [24]

Answer:

44.59

Step-by-step explanation:

49.92*2 = 49.96/2 = 124.90

Tax on that is 124.90*1.071 = 133.7679

Divide that 3 to get average mean cost

133.7679/3 = 44.589

round to 44.59

5 0
3 years ago
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