Answer:
Step-by-step explanation:
Urn has 3 green and 4 yellow
we choose 2 balls randomly
so samples space for this selection is
![\left [ \left ( Y,G\right ),\left ( G,Y\right ),\left ( G,G\right ),\left ( Y,Y\right )\right ]](https://tex.z-dn.net/?f=%5Cleft%20%5B%20%5Cleft%20%28%20Y%2CG%5Cright%20%29%2C%5Cleft%20%28%20G%2CY%5Cright%20%29%2C%5Cleft%20%28%20G%2CG%5Cright%20%29%2C%5Cleft%20%28%20Y%2CY%5Cright%20%29%5Cright%20%5D)
Event A is choosing differently colored ball form sample space
P(A)=Probability of event (G,Y)+Probability of event (Y,G)
Answer: 4:20
Step-by-step explanation:
60 lbs can be divided into three groups, in this case the bags of sand, so 60 divided by 3 is 20.
Now you have the 8 lbs left. It gets divided into two groups/bags so you would do 8 divided by 2 is 4.
Then for your ratio it is cement to sand which is 4:20. You can write the ratio however way you want or what is required by the question.(fraction bar, ‘to’, or colon ‘:’ )
Hope this helps!
Answer:
Step-by-step explanation:
We use trigonometry to find the angle of elevation.
From the diagram, the angle of elevation of the sun is 
Recall the mnemonics SOH CAH TOA.
Therefore the angle of elevation of the sun is
See attachment
Answer:
The answer is: 26
Step-by-step explanation:
How i got this answer is i used a method called P.E.M.D.A.S ( parenthesis, exponents, multiplication, division, addition, subtraction). So i first did what was in the parenthesis (75 / 3= 25). Next I did division ( 25 / 5=5). Lastly, I did Subtraction ( 31-5 = 26) and so your left off with the answer 26.
~I really hope this explanation helped, have a gr8 day/night my friend!~
Answer:
Step-by-step explanation:
Area of two circles = 2*πr² = 2*3.14 * 6 * 6 = 226.08 square units
Area of rectangle = length * width = 24 * 12 = 288 square units
Area of shaded region = Area of rectangle - area of two circles
= 288 - 226.08
= 61.92
= 62 square units
