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3 years ago

13

Please answer with the correct letter for brainliest

2 answers:

Sidana [21]3 years ago

8 0

Answer:

$Given~inequality~is\\2(x-3) -5x$

So, the required answer is C. [Look at the screenshot]

Andru [333]3 years ago

5 0

I really think that it’s C
Hopefully this helps

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Profit P(x), is the difference between revenue, R(x), and cost, C(x), so P(x) = R(x) - C(x). Which expression represents P(x), i

Ivan

Answer:

<em>x⁴-3x³+x²-4</em>

Step-by-step explanation:

<em>I know cuz i worked it out, and it's really hard to explain, so just trust me.</em>

7 0

3 years ago

You have 600 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river

inn [45]

Answer:

The length and width of plot is $L=300\:ft$ , $W=150\:ft$

Largest area of the plot is $A=45000 ft^{2}$

Step-by-step explanation:

Assume width as x and length as y. Given that length of fencing is 600 feet and fencing is enclosed on 3 sides. So perimeter is given as,

Perimeter = width + length + width

Substituting the value,

$600=x+y+x$

$600= 2x+y$ ….1

Now area of fence of rectangular box is given as follows,

$A=xy$ ….2

Solving equation 1 for y, subtracting 2x from both sides,

$600-2x= y$

Substituting the value in equation 2,

$A=x\left (600-2x \right )$

Simplifying

$A=600x-2x^{2}$

Rewriting,

$A=-2x^{2}+600x$

Above equation looks like quadratic equation $f\left ( x \right )=ax^{2}+bx+c$ whose graph looks like parabola.

Comparing equation f(x) and A values of a, b and c are, $a=-2,b=600$ and $c=0$ .

Now maximum of $f\left ( x \right )$ occurs at vertex.

The x coordinate of the vertex is given as $-\dfrac{b}{2a}$

Substituting the values,

$x=-\dfrac{600}{2\left (-2 \right )}$

Simplifying,

$x=\dfrac{600}{4}$

$x=150$

So width of plot is 150 feet.

Now to calculate value of length by using equation 1,

$600= 2x+y$

Substituting the values,

$600= 2\left (150 \right )+y$

$600= 300+y$

Subtracting 300 from both sides,

$300= y$

So length of plot is 300 ft.

The y coordinate of the vertex is given as $y=f\left ( -\dfrac{b}{2a} \right )$ which also means, $y=f\left ( 150 \right )$

$\therefore A=-2\left (150 \right )^{2}+600\left (150 \right )$

Simplifying,

$\therefore A=-2\left (22500 \right )^{2}+600\left (150 \right )$

$\therefore A=-45000+90000$

$\therefore A=45000$

So, area of the plot will be $A=45000 ft^{2}$

7 0

3 years ago

Plot three points on the coordinate plane and label them a,b,c (be sure that all three points do not lie in a straight line) now

tensa zangetsu [6.8K]

It would be three lines and the shape would be a triangle

3 0

3 years ago

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0.056 divided by 0.004

Cloud [144]

Answer:

The answer is 14!

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A spinner has an equal chance of landing

liq [111]

Answer:

1/15

Step-by-step explanation:

since there are 3 equal colors, they're all 1/3

since it's 5, it's 1/5

1/5 x 1/3

1/15

7 0

2 years ago