Answer:
I think it 129 If not try 4
Answer:
59
Step-by-step explanation:
Let c and b represent the scores of Colin and Brian respectively. Then
c + b = 59. Since brian scored 59 more points than Colin, that means c = 0 and b = 59. Their combined score is 0 + 59 = 59.
Answer:
Step-by-step explanation:
This question shouldn't be asked this way. Any change like that should be reflected on both sides. This way makes the question ambiguous.
I'm going to let the graph answer the question for you
The red line is f(x) + 5 = x
The blue line is f(x) = x
You will notice that the red line is 5 units below the blue line. So the answer is B.
You could look at this another way
f(x) = x - 5 when 5 is subtracted from both sides.
Notice the minus sign. It means that the line has been shifted down.
Slope has nothing to do with it. C and D are both incorrect for that reason.
Answer:
6.9, and it is greater by 0.195
Step-by-step explanation:
Answer:
A) P(Z > 5000) = 0.0322
B) P( Y = 2 or 3) ≅ 0.9032
Step-by-step explanation:
From the given information;
Suppose the sales for the first week are denoted by X and the sales for the second week are denoted by Y.
Then;
X & Y are independent and they follow a normal distribution.
i.e.
If we set Z to be equal to X+Y
Then, since two normal distribution appears normal
So;
From the Z - tables;
P(Z > 5000) = 1 - 0.9678
P(Z > 5000) = 0.0322
B)
Let Y be the random variable that obeys the Binomial distribution.
Y represents the numbers of weeks in the next 3 weeks where the gross weekly sales exceed $2000
Thus;
where;
p = 1 - P( Z < - 0.869565)
From the Z - tables;
p = 1 - 0.1924
p = 0.8076
Now;
P(Y ≥ 2) = P(Y = 2) + P( Y =3 )
Using the formula
P( Y = 2 or 3) = 0.9031911541
P( Y = 2 or 3) ≅ 0.9032