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4 years ago

Somebody help me lol

Mathematics

1 answer:

Lapatulllka [165]4 years ago

4 0

Answer:

you subtract the exponents when dividing numbers with the same base

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Find the equation of the quadratic function f whose graph is shown below. (-4,-1) (-3,-3)

Cerrena [4.2K]

The equation of the quadratic function f whose graph is shown below is x² + 6.1x + 8.2

Find the diagram attached.

First, we need to get the zeros of the required function. The point where the curve cuts the x-axis is the zeros.

According to the graph, the curve cuts the x-axis at x = -2 and x = -4.1

The required factors will be (x+2) and (x+4.1)

Taking the product of the factors

f(x) = (x+2)(x+4.1)

f(x) = x²+4.1x+2x +8.2

f(x) = x² + 6.1x + 8.2

Hence the equation of the quadratic function f whose graph is shown below is x² + 6.1x + 8.2

Learn more here: brainly.com/question/11286627

4 0

3 years ago

A rectangular garden of area 456 square feet is to be surrounded on three sides by a brick wall costing $ 12 per foot and on one

solniwko [45]

Answer:

$l=2\sqrt{114}feet$ $b=2\sqrt{114}feet$ $\left ( l,b \right )=(21.3541,21.3541)$

Step-by-step explanation:

Given,

Area of garden=456 square feet

Brick wall cost three sides $=\$ 12$ per foot

fencing cost of one side $=\$ 7$ per foot

Let length and breadth of rectangular field is (l,b) feet

For minimizing the cost of material perimeter of garden should be minimum and area of garden is more.

Perimeter of garden $=2\left ( l+b \right )=k$

$l+b=k/2$

$l=k/2-b$

A= $l\times b=456$

A= $\left ( k/2-b \right )b=456$

Differentiating the equation to find maximum area

$\frac{d}{db}(\left ( k/2-b \right )b)=\frac{\partial 456}{\partial b}$

$k/2-2b=0$

$k=4b$

$l=4b/2-b$

$l=b$

To find $maxima$ again differentiating

$\frac{\partial A^2 }{\partial b^2}=\frac{\partial \left ( k/2-2b \right )}{\partial b}$

$\frac{\partial A^2 }{\partial b^2}$

The area is maximum when l=b

and perimeter is minimum

$l\times b=456$

$b^{2}=456$

$b=2\sqrt{114}feet$

$l=2\sqrt{114}feet$

Cost material

$=2\sqrt{114}\times 3\times 12+2\sqrt{114}\times 7$

$=72\sqrt{114}+14\sqrt{114}$

$=\$ 86\sqrt{114}$

$=\$ 918.22873$

Dimension of rectangular garden

$\left ( l,b \right )=(21.3541,21.3541)$

4 0

3 years ago

David wants to measure the diameter of his circular pool, but he does not have a tape measure long enough to reach across the po

Kipish [7]

Answer:

b because yryrhrhrhrheueygrhegrgrhrhhefegeyyegegehhegggegrgrgegeghrhthjejjwhrggegeggeggegfefefgegegyeygegrgrctgeggeggrgrgrgrggrgrgrgrggrgrgrgrgf5c55fgryeyyeyegrgr

7 0

3 years ago

What is the exponential form for 7^√x^3

Semenov [28]

Answer:

The exponential form of this would be (7x)^3/2

Step-by-step explanation:

The square root symbol is the same as writing raised to the 1/2. So we can rewrite the equation as:

[(7x)^1/2]^3

Then we can multiply the two exponents in this case giving us

(7x)^3/2

7 0

3 years ago

Read 2 more answers

Help me please!!! , .

elena55 [62]

Answer:

ahhhhhhhhhhh

Step-by-step explanation:

ahhhhhhhh the world is going to end bro ahhhhhhhhh!!!!!!

lol sike jkjk

easypeasy sksksksk:P

oh and i gave llama 2% of my profit

7 0

3 years ago