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sashaice [31]
3 years ago
14

What is the value of x? A. 125B. 40C. 75D. 55

Mathematics
2 answers:
Bogdan [553]3 years ago
8 0
C. 75 When you multiply the number by 2 you get 32 and the answer
butalik [34]3 years ago
8 0
B                        f f f  f f f f  f f f f  f f f  f                        
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12 spheres of the same size are made from melting a solid cylinder of 1 cm diameter and 2 cm height. Find the diameter of each s
mars1129 [50]

The answer is: The diameter is 4 centimeters.

The explanation  is shown below:

1. The volume of the cylinder is:

Vc=r^{2}h \pi

Where r is the radius (r=\frac{16cm}{2}=8cm) and h is the height (h=2cm).

Then:

Vc=(8cm)^{2}}(2cm)\pi\\Vc=128\pi

2. The total volume of the 12 spheres is:

Vs=12(\frac{4}{3}r^{3}\pi)\\Vs=16r^{3}\pi

3. The volume of the cylinder and the total volume of all the 12 spheres, are equal, therefore:

Vc=Vs\\128\pi=16r^{3}\pi

4. Now, you must solve for the radius:

r=\sqrt[3]{\frac{128\pi}{16\pi}}\\r=2cm

5. The diameter is:

d=2r\\d=2(2cm)\\d=4cm

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3 years ago
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What times what equals 168 besides 84 times 2?
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Step-by-step explanation:

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The temperature is -3°C. As the day progresses, the temperature increases by 8°C, then drops by 6°C. Find the final temperature.
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We know that the initial temperature is -3 then it rises to 8 and drops by 6 degrees then you just need to subtract six from 8                                                         \displaystyle\  8-6=2^\circ \\\\Answer: the\ secondary\ temperature \ will \ be equal \ to  \ 2^\circ

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