Answer:
Took the test, answer is C) 17(100)+17(40)+17(4)
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%
Start at 4 on the y axis
move 2 units up and 3 units right
Answer:
n x p = c
Step-by-step explanation:
n is the amount of pens so we time it by the cost of 1 pen which is p and the final answer is c as the cost of all the pen.
P= a+b+c = 76
side a = 2b = 30
side b = b = 15
side c = 2b + 1 = 31
