jasminortega2002
15.07.2019 •
Mathematics
On a(n) 16-problem test, how many ways can a person get 6 problems correct and 10 problems wrong?
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Ответ:
Using the formula
n = # of objects
r = the sample of objects
Plug in 16 for n and 6 for r to get
Now solving this equation will give you 8008 combinations as your answer.
Your friend, ASIAX
Ответ:
828 small spheres can be made from the metal.
Step-by-step explanation:
Side of the cube = 4.5cm
Volume = (a x a x a)
= (4.5 x 4.5 x 4.5)
= 91.125 cubic cm
Radius of the sphere = 3mm = 0.3 cm
Volume of 1 sphere = (4/3) π(r x r x r)
= (4/3) (3.14) (0.3 x 0.3 x 0.3)
= (4/3) (3.14) (0.027)
= 0.34/3
= 0.11 cubic cm
No. of spheres = 91.125/0.11
= 828.4
So, 828 small spheres can be made from the metal.