Answer:
c. 122.1 cm
Step-by-step explanation:
so l * w +
since 6 cm is the diameter
6/2 = 3
the radius (or r) is 3
so 18 * 6 +
108 +
108 +
108 + 14.13 = 122.13
simplified: 122.1 cm
hope this helps:)
During which two time intervals does the particle undergo equal displacement?
2 answers:
You might be interested in
Answer:
a. The sample size is approximately 97 adults
Step-by-step explanation:
The given parameters are;
The number of adults surveyed, n = 174
The lowest value of the pulse rate = 39 bpm
The highest value of the pulse rate = 111 bpm
The level of confidence used for determining the sample size = 90%
The given sample mean = 3 pm of the population mean
a. The range rule of thumb states that the standard deviation is approximately one quarter (1/4) of the range
The range = 111 bpm - 39 bpm = 72 bpm
Therefore, the standard deviation, σ = 72 bpm/4 = 18 bpm
The sample size, 'N', is given as follows;
Where;
N = The sample size
z = The confidence level, 90% (z-score at 90% = 1.645)
p·q = σ² = 18² = 324
e² = 3² = 9
Therefore the appropriate sample size, N ≈ 97 adults.