Answer:
0.00324 or in scientific notation 3.24×10^-3
Step-by-step explanation:
MASS OF SINGLE ELECTRON = 5.4×10^-4
MASS OF 6 ELECTRONS = 6× 5.4×10^-4
=32.4×10^-4
= 3.24×10×10^-4
= 3.24×10^-3
The pythagorean theorem states: a² + b² = c²
Where c is the longest side (hypotenuse).
So we plug in and solve for the third side "b".
a = 12, c = 13, so:
12² + b² = 13²
144 + b² = 169
b² = 169 - 144
b² = 25
b = 5
We can double check the pythagorean theorem to make sure:
12² + 5² = 13²
144 + 25 = 169
So the unknown side is definitely 5.
Answer:
17 degrees
Step-by-step explanation:
Answer:
A=73
Step-by-step explanation:
sum of interior angles is (n-2)*180
5 sides, so (5-2)*180 = 3x180=540
sum of current interior angles (118+96+115+104)=433
subtract 540-433=107
This is NOT "A", this is your final interior measurement.
To get "A", take 180-107=73
A=73 degrees
Answer:
So, the expected value of the time it takes to commute is 16 minutes.
Step-by-step explanation:
Let X is time it takes you to commute. We calculate E(X)?
We know that the probability that you will have to wait for a train is 1/5, or .20. If you don’t have to wait, the com mute takes 15 minutes, but if you have to wait, it takes 20 minutes.
The probability that you will have to wait for a train is
:
The probability of not waiting for a train is:
So we get the following probability distribution:
We calculate E(X):
So, the expected value of the time it takes to commute is 16 minutes.
Expected value is not always the actual travel time, because it can sometimes take anywhere from 15 to 20 minutes.