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Inga [223]
2 years ago
6

If you do these 2 problems you get 100 points

Mathematics
2 answers:
Amiraneli [1.4K]2 years ago
6 0

#1

  • x-4y≤-12
  • -4y≤-x-12
  • 4y≥x+12
  • y≥1/4x+3

Put (0,0)

  • 0≥0+3 is false

Shading will be away from origin.

y inetercept

  • y=3(when x=0)

Check the direction of line by taking 4 and -4

  • y=4/4+3=y=4
  • y=-4/4+3=-1+3=2

The graph should bend down on left side while rise up in right side

Option A

#2

  • 5x-4y>4
  • -4y>-5x+4
  • 4y<5x-4
  • y<5/4x-1

Putting origin in it

  • 0>-1

Shading away from origin

And

  • x+y<2
  • y<2-x

Putting origin

  • 0<2

Shading towards origin

  • Option B as shading should be downwards here
frosja888 [35]2 years ago
4 0

Answer:

BELOW

Step-by-step explanation:

DO I HEAR 100 POINTS? Yes.

For the first image, that answer is A.

For the second image, I'm a bit confused on which problems you want me to do, so I'll do number 10, 11, and 14.

10) Yeah, you're correct, it is J.

11) (1,-6), (-2,-5), (8,2) (4,0) and I can't see the last point so..

14)  Can't see the question :(

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Solve the inequality:<br>(x+2)/(x^2-3x)&gt;0​
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Answer:

The inequality is equivalent to x(x+2)(x−3)>0 , with the additional conditions that x≠0 and x≠3 .

Since x(x+2)(x−3) only changes signs when crossing −2 , 0 and 3 , from the fact that the evaluating the polynomial at 4 yields 24 , we see that the polynomial is

positive over (3,∞)

negative over (0,3)

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negative over (−∞,−2)

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Step-by-step explanation:

hi Rakesh here is your answer :)

#shadow

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3 years ago
What is the measure of the missing length? Round to the nearest tenth.
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Answer:

Maybe 12…

Step-by-step explanation:

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7 0
3 years ago
A farmer is building a fence to enclose a rectangular area consisting of two separate regions. The four walls and one additional
Vlad [161]

Answer:

The maximal area will be "1093.5 square feet".

Step-by-step explanation:

Let,

Length = L feet

Breadth = b feet

Given Total fencing = 162 feet

According to the question,

 (2\times L)+(3\times b)=162

              2L+3B=162

                         L=\frac{162-3b}{2}

                         L=81-\frac{3}{2}b

As we know,

 Area=Length\times breadth

          =(81-\frac{3}{2}b)\times b

          =81b-\frac{3}{2}b^2

Now, we required to decrease or minimize the are. So for extreme points:

 \frac{dA}{db}=0

or,

 \frac{dA}{dB}=\frac{d}{db}(81-\frac{3}{2}b^2 )=0

       81-\frac{3}{2}\times 2\times b=0

                            b=\frac{81}{3}

                            b=27 \ feet

Now on putting the value of b, we get

 l=81-\frac{3}{2}\times 27

   =81-40.5

   =40.5 \ feet\\

So that the dimensions will be:

⇒  40.5 feet by 27 feet

Therefore when the dimension are above then the area will be:

=  81\times 27-\frac{3}{2}\times 27\times 27

=  2187-\frac{3}{2}\times 729

=  2187-1093.5

=  1093.5 \ square \ feet

6 0
3 years ago
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