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gogolik [260]
1 year ago
11

Given the formula, E = mgh + 1/2mv

absmiddle" class="latex-formula">, find h when E = 96, m =2, g= 10 and v=6
Mathematics
1 answer:
vlabodo [156]1 year ago
7 0
Answer:
4.5
Explanation:
I’ve attached my work below
Hope it helps, Let me know if you have any questions !

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LekaFEV [45]
Answer
Hey :)

Explanation
3 0
3 years ago
Read 2 more answers
Please help me on this thank you so much
ruslelena [56]
I believe the answer is B because you multiply 18 and 40 then subtract 320 from that and you will 400.
5 0
2 years ago
the perimeter of a semicircle is 108 cm what is the perimeter of the square drawn on the diameter of the semicircle ​
Andreas93 [3]

Answer:

Step-by-step explanation:

the perimeter of the semi-circle would be the diameter plus the circumference of half of the circle.  

They want to know the perimeter of a square using the diameter of the sem-circle as ONE side, so the perimeter of the square would be 4 times the ONE side.

We should recall:

diameter = 2 times the radius     circumference of a cirlce = 2π r

How do we find the diameter of the of the semi circle?

The perimeter of the semi circle is given as 108 cm

Perimeter of the semicirle =    2r + π r         diameter plus semi circumference

                                  108   =   r ( 2 + π)           factor out the r and solve for r

                     108 / (2 + π)   =   r                       divide both sides by ( 2 + r)

Now we know r, the perimeter of the squqre is 4 times 2r  or  8r

           perimeter of square = 8  [ 108 / (2 + π) ]               π  I used 3.14

                                             =  864 / 5.14

                                             =   168.1 cm       I got rounded to nearest tenth    

<em>When I re-checked by work I found a few math,  logic and calculation errors.  Please re-check my answer for any more mistakes.</em>

       

4 0
3 years ago
Mary-Ann has $28, which is 2 1/3 as much money as Lona has. How much money dose Lona have?
pav-90 [236]

Answer:

12 dollars

Step-by-step explanation:

<h3>Lona should have 12 dollars because it says that it is <em>2 1/3</em> as much as Mary-Anns amount. You would divide 28➗2 1/3=12</h3><h3 /><h3>hope this helps</h3>
6 0
2 years ago
The class sizes of the introductory psychology courses at a college are shown below 121,134,106,93,149,130,119,128 the college a
frozen [14]
Center : Mean  Before the introduction of the new course, center = average(121,134,106,93,149,130,119,128) = 122.5  After the introduction of the new course, center =  average(121,134,106,93,149,130,119,128,45) = 113.9  The center has moved to the left (if plotted in a graph) because of the low intake for the new course.  Spread before introduction of the new course :  Arrange the numbers in ascending order:  (93, 106,119, 121), (128, 130,134, 149) Q1=median(93,106,119,121) = 112.5 Q3=median(128,130,134,149) = 132  Spread = Interquartile range = Q3-Q1 = 19.5  After addition of the new course,

 (45,93, 106,119,) 121, (128, 130,134, 149)
 Q1=median(45,93,106,119)=99.5
 Q3=median (128, 130,134, 149)= 132
 Spread = Interquartile range = 132-99.5 =32.5 
 We see that the spread has increased after the addition of the new course.
3 0
3 years ago
Read 2 more answers
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