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Arturiano [62]
3 years ago
9

Jamie is conducting inventory at a public library, so they have to verify that each item from the catalog is in its correct loca

tion. At any given time, 97%, percent of the items are checked into the library (not checked out). Let B be the number of items that Jamie verifies to reach the first item that is checked out. Assume that each item's checked out status is independent.
Find the mean and standard deviation of B.
Mathematics
1 answer:
Andrei [34K]3 years ago
4 0

Answer:

Mean: 33.3

SD: 32.8

Step-by-step explanation:

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liubo4ka [24]

Answer:

I'm pretty sure the answer to the third question is C

Step-by-step explanation:

We are solving for h(g(x)).

We already know that g(x) is equal to x^2+4.

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We also know that h(x)=1/x

we simply substitute x for x^2+4, giving us an answer of 1/(x^2+4)

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32 divided by 9 =___with_____left over
rosijanka [135]

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3 with leftover of 5

Step-by-step explanation:

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3 years ago
Read 2 more answers
Which of the following is the function representing the graph below?
Elena-2011 [213]
We have that

using a graph tool
see the attached figure 

 case A) <span>f(x) = 4^x
</span>this function is not <span>represented in the graph

case B) </span><span>f(x) = 4^(x) − 3
</span>this function is not represented in the graph

case C) <span>f(x) = 4^(x) + 3
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case D) <span>f(x) = 4^(x + 3)
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the answer is
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5 0
3 years ago
A line passes through (2,4) and (-2,2). find the value of y if (6,y) lies on the same line
katrin2010 [14]

Answer:

y = 6, rendering the coordinate pair: (6,6)

Step-by-step explanation:

We start by writing the equation of the line that passes through two given points on the plane: (x_1,y_1) and (x_2,y_2) beginning with finding the slope of the segment that joints the points using the slope formula: slope=\frac{y_2-y_1}{x_2-x_1}

Let's call (x_1,y_1) = (2,4), and (x_2,y_2) = (-2,2). Then we have the formula for the slope:

slope=\frac{y_2-y_1}{x_2-x_1}=\frac{2-4}{-2-2} =\frac{-2}{-4} =\frac{1}{2}

Now that we have the slope of the line, we can find the actual equation of the line by using one of the given points, and the "point-slope" form of a line with slope "m" and going through a point (x_0,y_0) - which in our case we defie as one of our given points, let's say (2, 4):

y-y_0=m\,(x-x_0)\\y-4=\frac{1}{2} (x-2)\\y-4=\frac{1}{2} x-1\\y=\frac{1}{2} x-1+4\\y=\frac{1}{2} x+3

now we find what is the "y" value in such line that corresponds to an x-value of "6" to complete the coordinate pair (6, ?). For such we simply evaluate the equation above at x = 6:

y=\frac{1}{2} x+3\\y=\frac{1}{2} (6)+3\\y=3+3\\y=6

Therefore, y must be "6".

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Last one.
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