Answer:
A. 1/2.
B. 15/26.
Step-by-step explanation:
Note when you have an 'OR' in the statement we <u>add </u>the probabilities.
A . Club or a diamond . There are 13 clubs and 13 diamonds so
The Required Probability = 13/52 + 13/52
= 1/4 + 1/4 = 1/2.
B. There are 4 jacks and 26 black cards.
The Required Probability = 4/52 + 26/52
= 1/13 + 1/2
= 2/26 + 13/26
= 15/26.
To figure this out, subtract 15 from 7 and you get –8. So your answer is -8˚ C.
Hope that helps:)
Answer:
22c+36
Step-by-step explanation:
3+11(2c+3)
3+22c+33
3+33+22c
36+22c or 22c+26
The activation energy is the amount of energy required to initiate a certain reaction. The activation energy may considered as an "energy barrier" that has to be overcome in order for a reaction to begin. If a reaction has a lower activation energy, then it will occur more easily and at a faster rate than a reaction with a higher activation energy. Therefore, the reason that reaction 1 is faster than reaction 2 is because it has a lower activation energy than reaction 2.
Answer:
Mean, Mode, Median, Range, Standard Deviation.
Step-by-step explanation:
The completed sentences are as follows -
- The arithmetic average of a distribution of scores is the Mean
- The score that shows up most often is the Mode
- The score right in the middle of a distribution is the Median
- We determine how much scores vary around the average in a way that includes information about the Range of scores by using the Standard Deviation
