Answer:
732π cm^3
Step-by-step explanation:
Volume of the biggest cone
(15^2 * π *20)/3 = 1500π cm^3
Volume of the smallest cone
20^3 : 16^3= 1500π : x
x = (1500π * 4096)/8000= 768π cm^3
Volume of the frustum = 1500π - 768π = 732π cm^3
Answer:
The common difference would be calculated as:
(a21-a19)/2
(-164--(-58 ))/2 (Replacing the values )
(-164 +58)/2 (Changing signs)
(-106)/2(Subtracting)
-53
Then we are going to replace the common difference(d) in the sequence formal with the 21st term . It is done for finding the first term of the sequence.
a21=a0+d*(n-1)
-164=a0+-53*(21-1) (Replacing the values)
-164=a1-53(20) (Subtracting)
-164=a1-1060 (Multiplying )
-164+1060=a1 (Adding 1060 on both sides of the equation)
896=a1
The answer would be : an= 896-53*(n-1), which is the option B.
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Answer:
THis is hard
Step-by-step explanation:
What grade is thi?
Answer:
67
Step-by-step explanation:
It would be 12% because .3 divided by 2.5 is .12 which is equivalent to 12%
