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Nuetrik [128]
2 years ago
14

What is the volume of the cube shown?

Mathematics
1 answer:
viktelen [127]2 years ago
3 0
It’s 11 24/64 i did this too
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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
Write the ratio as a fraction, a decimal, and a percent.<br> 51:75
irina [24]
51:75

This is the same as 51/75.

Simplify by dividing 3 to the numerator and denominator:

17/25

Divide this to get a decimal:

17 / 25 = 0.68

Now multiply by 100 to get a percent:

0.68 * 100 = 68%
6 0
3 years ago
Symplify 5+2(x-5) <br><br> These letter and words are just to add stuff please
Nataliya [291]

I think it should be 7x-35

8 0
3 years ago
Using the triangle below, Find the ratio. Please need help very much appreciate
zmey [24]

Answer/Step-by-step explanation:

✔️Sin 22° = opp/hyp

Opp = 15

Hyp = 40

Sin 22° = 15/40

Simplify

Sin 22° = ⅜

✔️Tan 22° = opp/adjacent

opp = 15

Adjacent = √(40² - 15²) (pythagorean theorem)

Adjacent = √1,375 = 37.1 (nearest tenth)

Tan 22° = 15/37.1

3 0
2 years ago
40 points!!!
Nimfa-mama [501]

Answer: B

Step-by-step explanation: I have no Idea if this is right but I’m just guessing that the answer is “B”.

3 0
3 years ago
Read 2 more answers
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