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weqwewe [10]
3 years ago
12

Let y represent the total cost of publishing a book (in dollars). Let x represent the number of copies of the book printed. Supp

ose that x and x are related by the equation.
What is the change in the total cost for each book printed?

What is the cost to get started (before any books are printed)?

Equation: y=1250+25x
Mathematics
1 answer:
Alina [70]3 years ago
4 0
What is the change in the total cost for each book printed?
$25
What is the cost to get started (before any books are printed)?
$1250
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Find the midpoint of A and B where A has coordinates (2,9)
timofeeve [1]

Answer:

(\dfrac{9}{2}, \dfrac{13}{2})

Step-by-step explanation:

The coordinates of A = (2,9)

The coordinates of B = (7,4)

Let M (x,y) be the mid point of A and B.

M(x,y)=(\dfrac{x_1+x_2}{2}),(\dfrac{y_1+y_2}{2})\\\\=\dfrac{2+7}{2}, \dfrac{9+4}{2}\\\\=(\dfrac{9}{2}, \dfrac{13}{2})

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3 years ago
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Answer:

Probability = 0.2470

Step-by-step explanation:

Given

Black = 4

White = 5

Total = 9 i.e. 5 + 4

Required

Determine P(Black\ and\ White)

In probability;

P(A\ and\ B) = P(A) * P(B)

So:

P(Black\ and\ White) = P(Black) * P(White)

<em>i.e. multiply the probability of selecting black by that of selecting white</em>

P(Black\ and\ White) = \frac{n(Black)}{Total} * \frac{n(White)}{Total}

P(Black\ and\ White) = \frac{4}{9} * \frac{5}{9}

Probability = \frac{20}{81}

Probability = 0.2470

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Answer:

10

There is no explanation I used a calculator

7 0
3 years ago
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