Answer:
(a) 71.00%
(b) 63.00%
Step-by-step explanation:
No optional features = 0.29
One feature = 0.34
Two features = 0.37
(a) The probability that an order requests at least one optional feature is 100% minus the probability of an order requesting no optional features:

(b) The probability that an order does not request more than one optional feature is 100% minus the probability of an order requesting two optional features:

A will be 7 x 5
B will be 10x10
Answer:
(5x + 6) (x + 7)
Step By Step Explanation:
Use the sum form to the product.
5
Probability of heads or tails is .5
so you do (.5)^3 and you get D = 0.125
(x + 8)(x - 6)
to factorise consider the factors of - 48 which sum to + 2
These are + 8 and - 6 thus
x² + 2x - 48 = (x + 8)(x - 6)