Answer:
5x+4y+8
Step-by-step explanation:
2x+3x=5x
5x+4y+8
Answer: y + 7 = -2/3 (x - 1 )
Step-by-step explanation:
The equation of a line in point - slope form is given as :
= m(
)
Where m is the slope and (
, 
) is the given point
substituting the values into the formula , we have:
y - (-7) = -2/3 ( x - 1)
y + 7 = -2/3(x - 1 )
The distance is 21km because it says each square is 1km and if you count along the squares there are 21
Hope this helps—xoxo
Answer: A 4 side dice.
Step-by-step explanation:
Benjamin has 4 possible homerooms with the same probability. This means that every homeroom has a 1/4 = 0.25 (or 25%) probability of getting chosen.
You could emulate this situation with a 4 sided dice (are like little pyramids) where each side of the dice would represent the selection of one of the homerooms.
Answer: 0.421
Step-by-step explanation:
Heavy smoker = 20%
Light smoker = 30%
Non smokers = 50%
We can assume that the probability that a non-smoker is going to die in the next 5 years be y.
Since light smokers were twice as likely as nonsmokers to die during the five-year study, the probability will be:
= 2 × y = 2y
Probability for the Heavy smokers will be:= 2 × 2y = 4y
The expected number of people that will die for each in the next 5 years will be:
Non smoker:
= 50% × y
= 0.5 × y
= 0.5y
Light smoker:
= 30% × 2y
= 0.3 × 2y.
= 0.6y
Heavy smoker:
= 20% × 4y.
= 0.2 × 4y
= 0.8y
Total = 0.5y + 0.6y + 0.8y = 1.9y
The probability that the participant was a heavy smoker will be:
= 0.8y/1.9y
= 0.421
