Answer:
The probability you see a dolphin or a whale on both days is 0.64
Step-by-step explanation:
Consider the provided information.
It is given that the brochure claims an 80% chance of siting a dolphin or a whale.
The provided claims can be written as: 80% or 0.80
Let say first day you see a dolphin or a whale and same happen on the next day.
Thus, the probability is:
0.80 × 0.80 = 0.64
Probability of see them on both days is 0.64
Hence, the probability you see a dolphin or a whale on both days is 0.64
$480 = x(20) + y(8)
where x+y=30
20 Hard covers = $400
10 Paper Backs = $80
80 + 400 = 480
Answer :
5(x-6)(x-2)
= 5 [ x^2 -2x -6x +12 ]
= 5 (x^2 -8x +12)
= 5x^2 -40x +60
Its D. x = 2, y = -8
6*2 + (-8) = 12 - 8 = 4
The solution of the system is A. (2, 1)