S ( s + 1)/ 2
so <span>The sum of the first 100 positive numbers
100(100 + 1) / 2
= 50(101)
= 5050</span>
Answer:
Approximately 
Step-by-step explanation:
we know that
The volume of a cylinder (barrel) is equal to

in this problem we have

-----> the radius is half the diameter
substitute

<u>Convert to gallons</u>

Answer:
805× 4= 3220
3220÷4=805
they are interconnected answers
hope it helps ,pls mark me as brainliest
To get the speed of growth of plant we proceed as follows;
rate=(distance)/(time taken)
distance( length) of growth of the plant in 14 days is 3.6 m.
1 day=86400 sec
14 days=86400x14=1,209,600 sec
1 m=1000000 micrometer
3.6 m=3600000 micrometer
thus the rate of growth will be:
3600000/1209600
=2.9762 micrometers per second