Answer:
3. 18 + 18 + 7 + 7 = 50
4. 120 degrees
Step-by-step explanation:
Answer:
c. the biology test
Step-by-step explanation:
To answer this problem we need to calculate the z-score of both tests, using the formula:
z = (x - μ) / σ
Where x is Sue's score, μ is the mean, and σ is the standard deviation.
- For the <u>biology test</u>, the z-score is:
z = (76 - 70) / 7 = 6/7 = 0.857
- For the <u>math test</u>, the z-score is:
z = (76 - 75) / 10 = 1/10 = 0.100
Because the z-score for the biology test is greater than the z-score for the math test, Sue did better in the biology test, in comparison to the rest of the class.
Total number of cards = 52
Number of clubs = 13
Number of cards that is not a club = 39
P(club + not a club) = (13/52) (39/51) = 13/68
Answer: 13/68
Answer:
I think it should be 15...
Step-by-step explanation:
13 * 3 = 39
5 * 3 = 15
It’s y=-3/4x-1 because it is