Answer:
(a)
radius=diameter/2
=21/2=10.5m
(b)
radius=diameter/2
=3.25/2=1.625mm
I would appreciate if my answer is chosen as a brainliest answer
sum of sequence Find the sum of 46 + 42 + 38 + ... + (-446) + (-450) is -25,250
<u>Step-by-step explanation:</u>
We need to find sum of sequence : 46 + 42 + 38 + ... + (-446) + (-450)
Given sequence is an AP with following parameters as :

So , Let's calculate how many terms are there as :
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⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
Sum of an AP is :
⇒ 
⇒ 
⇒ 
⇒ 
Therefore , sum of sequence Find the sum of 46 + 42 + 38 + ... + (-446) + (-450) is -25,250
Answer:
I think it is 24
Step-by-step explanation:
15÷5=3
3×8=24