This is a combination problem. Order does not matter and the books are all different. You would write this as 21C5 or 
. Combinations are not fractions.
The answer is 
which = 20349 different ways these books can be chosen.
Answer:
B
Step-by-step explanation:
Answer:
D. 2.064
Step-by-step explanation:
Number of sample (n) = 25, degree of freedom = n - 1 = 25 - 1 = 24, significance level = 0.05
The critical t value corresponding to 24 degrees of freedom and 0.05 significance level is 2.064
Answer:
volume of cylinder: 55.4 cm³
Step-by-step explanation:
volume of cylinder is π * radius² * height
here given radius is 1.4 cm and height is 8 cm
using the formula:
π * 1.4² * 9
55.42 cm³
55.4 cm³ ...if rounded to nearest tenth.
Add nine to both sides then divide by 3 and K=4
