<span>So we want to know how much ball bearings can be made with 5.24 cm^3 if one ball bearing has a diameter of 1 cm. We know that radius r=d/2=0.5cm So the volume V of one ball bearing is: V=(4/3)*pi*r^3 so V=(4/3)*3.14*(0.5)^3cm^3=0.524cm^3. Now we simply divide the volume of steel by the volume of the ball bearing: 5.24/0.524=10. So we can make 10 ball bearings from 5.24 cm^3 of steel</span>
Answer:
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Step-by-step explanation:
Answer:
0.61
Step-by-step explanation:
Add 0.14 to both sides of this equation, obtaining r = 0.61.
1.
Answer D.
2.
From secant theorem, we know, that:
and from picture:
So we can calculate:
