Can y’all help me plz
2 answers:
Answer:
A. 54 pie cm³
Step-by-step explanation:
height of the cylinder = 6 × radius of one sphere.
= 6 × 3
= 18 cm
as we can see 3 spheres make up the height of one cylinder,
height of one sphere = 6 cm (3 + 3)
with three spheres it becomes = 6 × 3
= 18 cm
- volume of a cylinder =
r² h
= × (9)² × 18
= 27 × 6
- volume of a sphere = 4/ 3 ×
= 36
- for 3 spheres
volume = 3 × (36 )
= 27 × 4
volume of the empty space
= volume of cylinder- volume of 3 spheres
= 27 × 6 - 27 × 4
= 27 ( 6 - 4)
= 27 × 2
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Answer:
Descarte's rule says that the polynomial will have the number of zeroes equal to the number of times the sign off the coefficient changes.
For positive real roots:
The coefficient of polynomial is:
+9 -4 +10
There is 2 time sign in changing in 1st and 2nd term and then in 2nd and 3rd term.
So,there will be 2 positive real roots or less but even.
For negative real roots find P(-x)
So, coefficient of above polynomial is:
-9 +4 -10
There is 2 time sign in changing in 1st and 2nd term and then in 2nd and 3rd term.
So,there will be 2 negative real roots or less but even.