Answer:
there are 14 books in the box now
Step-by-step explanation:
12-4=8
8+6=14
14 books
x = number of hours
want to find probability (P) x >= 13
x is N(14,1) transform to N(0,1) using z = (x - mean) / standard deviation so can look up probability using standard normal probability table.
P(x >= 13) = P( z > (13 - 14)/1) = P(z > -1) = 1 - P(z < -1) = 1 - 0.1587 = 0.8413
To convert that to percentage, multiply 100, to get 84.13%
Answer:
A≈345.58cm²
Step-by-step explanation:
Radius= 5cm and the Height= 6cm
The perimeter is 29! hope this helps
Answer:
68
Step-by-step explanation:
Area of a triangle is
