Answer:
.8
Step-by-step explanation:
5 red marbles, 2 Green marbles and 3 black marbles = 10 marbles
P (red or black) = number of red or black/ total
= (5+3)/10
=8/10
decimal form = .8
Red- 50% chance (.5)
Black- 30% Chance (.3)
Explanation:
The total amount of marbles is ten, meaning that we can change it to 100% no problem.
Green - 2 = 20% = .2
Black - 3 = 30% = .3
Red - 5 = 50% = .5
0.80 cents
I divided 9.60 by 12.
Answer: cos²(θ) + sin(θ)sin(e)
<u>Step-by-step explanation:</u>
sin (90° - θ)cos(Ф) - sin(180° + θ) sin(e)
Note the following identities:
sin (90° - θ) = cos(x)
sin (180° + θ) = -sin(x)
Substitute those identities into the expression:
cos(x)cos(x) - -sin(x)sin(e)
= cos²(x) + sin(x)sin(e)