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3 years ago

/PLEASE/ Help!!

Mathematics

2 answers:

Lubov Fominskaja [6]3 years ago

6 0

The answer usually question what does this question do you think Association

grigory [225]3 years ago

4 0

did you ever find any answers?

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Answer all of the questions please

kakasveta [241]

Answer:

Domain (-2,3)

Range (-10, 20)

Function: Definitely

Step-by-step explanation: So check it right. Starting with Domain how far do our values go in the x direction positive and negative in this case the farthest to the left is -2 and to the right is 3. For range same thing but now we look at the y axis -10 is lowest and 20 is the highest. Open circles don't affect our domains or range but they are important for determining functions. This is a function because going up and down the graph vertically at any points doesn't collide with any point more than once. If the open circle were closed then this would not be a function but in this case it is a function.

4 0

3 years ago

8x - 12 = 15x - 4x

S_A_V [24]

Answer: Isolate the variable by dividing each side by factors that don't contain the variable. x=−4

Step

7 0

3 years ago

Read 2 more answers

If there are 42 boys and 54 girls in a room, fill out all of the possible ratios of boys to girls that could be made.

denpristay [2]

54:42 54/42 54,42 that is the answer

5 0

3 years ago

a farmer has 100m for fence avaibiable, with which he intends to build a pen for his sheep. he intends to create a rectangular p

Reika [66]

The perimeter of the area of the pen the farmer intends to build for his

ship includes the length of the permanent stone wall.

Response:

i) The length and width of the rectangular pen are; x, and $\dfrac{100 - x}{2}$ , therefore;

The area is; $A = \dfrac{1}{2} \cdot x \cdot (100 - x)$

$ii) \hspace{0.5 cm}\dfrac{dA}{dx} = 50 - x$

$\dfrac{d^2A}{dx^2} = -1$

iii) The value of x that makes the area as large as possible is x = 50

<h3>How is the function for the area and the maximum area obtained?</h3>

Given:

The length of fencing the farmer has = 100 m

Part of the area of the pen is a permanent stone wall.

Let x represent the length of the stone wall, we have;

2 × Width = 100 m - x

Therefore;

Width, w, of the rectangular pen, $w = \mathbf{\dfrac{100 - x}{2}}$

Area of a rectangle = Length × Width

Area of the rectangular pen, is therefore;

$A = x \times \dfrac{100 - x}{2} = \underline{\dfrac{1}{2} \cdot x \cdot (100 - x)}$

$ii) \hspace{0.5 cm} \mathbf{\dfrac{dA}{dx}}$ , and $\mathbf{\dfrac{d^2A}{dx^2} }$ are found as follows;

$\dfrac{dA}{dx} = \mathbf{\dfrac{d}{dx} \left( \dfrac{1}{2} \cdot x \cdot (100 - x) \right)} = \underline{50 - x}$

$\dfrac{d^2A}{dx^2} = \mathbf{ \dfrac{d}{dx} \left( 50 - x\right)} = \underline{-1}$

iii) The value of x that makes the area as large as possible is given as follows;

Given that the second derivative, $\dfrac{d^2A}{dx^2} =-1$ , is negative, we have;

At the maximum area, $\dfrac{dA}{dx} = \mathbf{0}$ , which gives;

$\dfrac{dA}{dx} = 50 - x = 0$

x = 50

The value of x that makes the area as large as possible is x = 50

Learn more about the maximum value of a function here:

brainly.com/question/19021959

7 0

2 years ago

jodi pelfrey obtained a single payment of 1600 to buy a pedigreed dog she agrees to repay the loan at an ordinary interest rate

GarryVolchara [31]

Answer:

$120 ordinary payment. (%7.5 of $1,600)

Maturity Value: $1,600?

Step-by-step explanation:

Using the maturity value formula, $1,600 is the maturity value. Because this question doesn't state a time period of investment, it's difficult to determine the answer.

Formula: V = P * (1+R)^T

V – Maturity Value
P – Principal Invested
R – Rate of Interest
T – Time of Investment

Hopefully this helps.

4 0

3 years ago