At her archery lessons, Tess has a 90% chance of getting a bull's eye. Unfortunately, there is only a 40% chance that her
instructor will be watching her when she shoots. What is the probability that her instructor will see Tess hit the bull's eye?
Explain completely

Step-by-step explanation

2. you gave that there is a 40% chance that her instructor will be watching, which means that there is a 60% chance he will not be watching (100% - 40%).

3. you gave that there is a 90% chance of making a bull's eye, and 40% chance the instructor will be watching

since those two events are independent of each other, the chance of both of them happening is the product of the two chances, namely 0.9 x 0.4 = 0.36, or 36%

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4