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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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A student purchases school supplies at a store where the sale tax is 7%. The pre-tax price of the supplies is $48. What is the t
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Solution: We are given:

Sales tax =7\%

The pre-tax price of the supplies = 48

We have to find the total cost of the supplies.

We first need to find the sales tax on the price of supplies. The sales tax amount is:

7\% of 48=0.07 \times 48=3.36

Therefore, the total cost of the supplies = pre-tax price of the sales + sales tax amount

                                                                  =$48 + $3.36

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6 0
3 years ago
Seven pieces of rope have an average (arithmetic mean) length of 68 centimeters and a median length of 84 centimeters. If the le
Svet_ta [14]

Answer:

The maximum possible length, in centimeters, of the longest piece of rope is 134 cm

Step-by-step explanation:

Let the seven pieces be a,b,c,d,e,f,g

Average of 7 pieces of ropes  =68

Average = \frac{\text{Sum of all lengths}}{\text{No. of pieces}}

68= \frac{\text{Sum of all lengths}}{7}

68 \times 7 =\text{a+b+c+d+e+f+g}

476=\text{a+b+c+d+e+f+g} --A

We are given that the median length of a piece of rope is 84 centimeters.

We arrange the pieces in the ascending order

So, median will be the length of 4th piece

So, d = 84 cm

the length of piece a,b,c will be less than 84 and the value of e,f,g must be greater than or equal to 84

Let us suppose the length of a,b,c be x

Let us suppose the length of e,f be 84

The length of the longest piece of rope is 14 centimeters more than 4 times the length of the shortest piece of rope

So, g = 4x+14

Substitute the value in A

476=x+x+x+84+84+84+4x+14

476=7x+266

\frac{476-266}{7}=x

30=x

g = 4x+14=4(30)+14=134

Hence the maximum possible length, in centimeters, of the longest piece of rope is 134 cm

7 0
3 years ago
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8
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7 0
4 years ago
Translate and solve 860.89 is what percent of 437
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Answer:

197%

Step-by-step explanation:

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4 0
3 years ago
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