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Minchanka [31]
3 years ago
5

Presley is organizing the school book sale. Each stall will have 40 books on the shelf and 2 boxes of books with b books inside.

Presley also has 200 books in inventory to refill the shelves as books sell. This situation can be written as the following expression: 40s + (2b)s + 200 How many books should Presley have ready if she plans to open 8 stalls and have 12 books in each box? (2 points)
Mathematics
1 answer:
marissa [1.9K]3 years ago
5 0
40s+(2b)s+200=. Substitute s and b
40•8+(2•12)•8+200=.
Calculate consider order of operations
320+192+200=712 books
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Which graph represents the equation 12 = 32 + 4y? Explain how you know.
sergeinik [125]
What graph?
BTW the answer to that equation is: x=5
12=32+4y
12-12= 0 (cancels out)
32-12= 20
20 divided by 4= 5
Therefore, x=5
6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cbf%7B%20%7B15%7D%5E%7B2%7D%20%5Ctimes%20%20%7B3%7D%5E%7B2%7D%20%20%20%5Cdiv%20%20%5Csqrt
34kurt

\\ \tt\Rrightarrow 15^2\times 3^2\div \sqrt[3]{125}+9^3

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\\ \tt\Rrightarrow 3^45^1\div 3^6

\\ \tt\Rrightarrow 3^{-2}5

\\ \tt\Rrightarrow \dfrac{1}{3^2}5

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7 0
2 years ago
The graph of the function f(x) = –(x + 1)2 is shown. Use the drop-down menus to describe the key aspects of the function. The ve
eimsori [14]

The graph of the function f(x) = -(x+1)^2 shows that the domain of the function f(x) = -(x+1)² is: -∞ < x < ∞. The range of the function is f(x) ≤ 0.

<h3>What is the graph of a function?</h3>

The graph of a function is the arrangement of all ordered pairs of the function. Typically, they are expressed as points in a cartesian coordinate system. The graph of f is the collection of all ordered pairings (x, f(x)) such that x lies inside the domain of f.

The graph of a function might similarly be defined as the graph of the equation y = f(x). As a result, the graph of a function is a subset of the graph of an equation.

From the given information: the graph of the function f(x) = -(x+1)² can be determined if the domain, the range, and the vertex of the function are known.

  • The domain of the function f(x) = -(x+1)² is: -∞ < x < ∞
  • The range of the function is f(x) ≤ 0
  • The x-intercepts and the y-intercepts are (-1,0) and (0, -1) respectively
  • The vertex is maximum at (-1,0)

Since the parabola curve from the graph shows that the graph is facing down, then the function is negative and decreasing.

Learn more about the graph of a function here:

brainly.com/question/24696306

#SPJ1

8 0
1 year ago
"The sum of a number and 4."
kenny6666 [7]

Answer:

n + 4

Step-by-step explanation:

It´s like a normal sum, but since the number is unknown just put n.

7 0
3 years ago
Read 2 more answers
Given the Homogeneous equation x^2ydy+xy^2dx=0, use y=ux, u=y/x and dy=udx+xdu to solve the differential equation. Solve for y.
scZoUnD [109]

Answer:

y=\frac{C}{x}.

Step-by-step explanation:

Given homogeneous equation

x^2ydy+xy^2dx=0

\frac{\mathrm{d}y}{\mathrm{d}x}=-\frac{xy^2}{x^2y}

Substitute y=ux , u=\frac{y}{x}

\frac{\mathrm{d}y}{\mathrm{d}x}=-\frac{y}{x}

Now,

u+x\frac{\mathrm{d}u}{\mathrm{d}x}=\frac{\mathrm{d}y}{\mathrm{d}x}

u+x\frac{\mathrm{d}u}{\mathrm{d}x}=-u

\frac{\mathrm{d}u}{\mathrm{d}x}=-2u

\frac{du}{u}=-\frac{dx}{x}

Integrating both side we get

lnu=-2lnx+lnC

Where lnC= integration constant

lnu+ln{x}^2=lnC

lnux^2=lnC

Cancel ln on both side

ux^2=C

Substitute u=\frac{y}{x}

Then we get

xy=C

y=\frac{C}{x}.

Answer:y=\frac{C}{x}.

8 0
3 years ago
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