The answer is is 4.2
3^2+3^2=c^2
9+9=c^2
18=c^2
Square root both sides
4.242640687119285=c
Add -9 so you get 5= 2x :)
Answer:
C. 3a + 6
Step-by-step explanation:
The expression that describes the verbal expression is 3a + 6.
Now let us approach this step wisely;
Triple quantity a = 3a
Increased by 6 = + 6 , an increment is addition to a term.
So, the full algebraic expression is 3a + 6
The solution is 3a + 6. Word problems like this should be approached step wisely.
Answer: 5(x+8)
Step-by-step explanation:
Answer:
Step-by-step explanation:
There are 8 Jonathan (red), 4 Granny Smith (green), and 5 Golden Delicious (yellow) apples in the bag.
a) Select 3 apples with replacement. Find the probability that all there are green.
- Given that we are taking all apples with replacement, the probability of getting a green apples remains the same in all 3 trials. Therefore the probability here is computed as:
- = (Number of green apples/Total apples)
Therefore 0.0130 is the required probability here.
b) Select 3 apples with replacement. Find the probability that none are red
Probability that none are red is computed here as:
- = (Number of non red apples/Total apples)
Therefore 0.14838 is the required probability here
c) Select 4 apples with replacement. Find the probability that you get at least 2 red apples
- Probability that we get at least 2 red apples when 4 apples are drawn is computed here as:
- = 1 - (Probability that no red apple is taken out when 4 apples are taken out + Probability that 1 red apple is taken out when 4 apples are taken out)
- = 1 - 8C0 x 9C4 + 8C1 x 9C3 / 17C4
Therefore 0.6647 is the required probability here
d) Select 2 apples with replacement. Find the probability that the second apple is yellow given that the first apple is red.
- Given that the first apple is red, we are left with 16 apples out of which 5 are yellow. Therefore the required probability here is computed as:
Therefore 0.3125 is the required probability here
