50 degrees
180 degrees
130 degrees
130 degrees
I have no idea what did he do
Answer:
The probabilty of selecting a red or yellow marble is 7/12
Step-by-step explanation:
To know the probability we have to divide the number of favorable events by the number of possible events
F = Favorable events: red or yellow marble
P = Possible events: red, yellow or blue
F = 4 + 3
F = 7
P = 5 + 4 +3
P = 12
7/12
The probabilty of selecting a red or yellow marble is 7/12
With 10 to the power to a negative number, it's easier.
Here's a trick: The negative number is the places to the right of the decimal. The last number is a 1, while the rest are 0s.
From this, we get:
Answer:
1/2
Step-by-step explanation:
(-4--2)/(3-7)=-2/-4=1/2