P - (-3) would turn into p+3.
So we have
p - (-3) = 2
become
p + 3 = 2
To isolate p, we need to move that "+3" over. To do this, we subtract 3 from both sides. Subtraction is the opposite (or inverse) of addition, which is why this works
p+3 = 2
p+3-3 = 2-3 ... subtract 3 from both sides
p+0 = -1
p = -1
So the final answer is p = -1
Answer:
1/2
Step-by-step explanation:
To find the slope of a line through 2 point we use the formula
m = (y2-y1)/ (x2-x1)
= (9-6)/(-3--9)
= 3 /(-3+9)
= 3 /6
= 1/2
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Answer:
D is the correct option
Step-by-step explanation:
The roulette can land in any possibly slot and their are 38slots
i.e the total possible event is 38
Green slot = 2
Red slot =18
Black slot =18
P(G)=2/38 =1/19
P(R)=18/38=9/19
P(B)=18/38=9/19.
The roulette will be spun twice and they are independent i.e. the occurrence of one event does not affect the occurrence of the other.
We are looking for the probability of red first and probability of black
P(R n B)=P(R)P(B), since they are independent
P(R n B)=9/19×9/19
P(R n B)= 0.2244
D is the correct option
