Circumference is Diameter * 3.14
so D * 3.14 = 31.4
31.4 / 3.14 = 10 so the diameter is 10.
the radius is half of the diameter so radius = 5 centimeters.
-/7? imagine that there is an -1 as the numerator. so now -/7 turns into -1/7
Answer:
Yes
Step-by-step explanation:
25 is less than 28
28 is greater than 25
Answer:
0
Step-by-step explanation:
We are given that each electron in an atom has a charge of -1 and each proton has a charge of +1.
The charge of 2 electrons will be:
2 * (-1) = -2
The charge of 2 protons will be:
2 * 1 = 2
The overall charge is the sum of the charge of the 2 electrons and the 2 protons. That is:
-2 + 2 = 0
The overall charge is 0.
I hope this helps!! Good luck on your next test!!