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madreJ [45]
3 years ago
5

The given line passes through the points (−4, −3) and (4, 1).

Mathematics
1 answer:
dimulka [17.4K]3 years ago
5 0
1+3/4+4
4/8
1/2
y-3=-2(x+4)
y - 3 = -2(x + 4)
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Quadratic Equation Word Problem
Crazy boy [7]
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Define x :
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Let the width be x.

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Find Area of the walkway :
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Area = 30x + 30x + 20x + 20x + 4x²       
Area = 100x + 4x²

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Find cost of the walkway in term of x:
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1m² = $10
100x + 4x² = 10(4x² + 100x)
(100x + 4x²)m = $(40x² + 1000x)

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Find Width of the walkway :
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The budget is $6000

40x² + 1000x = 6000
40x² + 1000x - 6000 = 0
x² + 25x -150 = 0              //Divide by 40 through
(x - 5)(x + 30) = 0             //Factorise
x = 5 or x = -30 (Rejected, width cannot be negative)

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Answer: The width can be 5m wide.
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5 0
3 years ago
Solve for x: 9x-1=10x+9<br><br> How do you get x off one side and onto the other, please explain
Stels [109]

Answer:

x = -10

Step-by-step explanation:

9x-1=10x+9

9x-1+1=10x+9+1

9x=10x+10

9x-10x=10x-10x+10

-x=10

-x/-1=10/-1

x= -10

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4 0
3 years ago
Heyy! i’ll give brainliest help asap pls
PolarNik [594]

Answer:

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8 0
3 years ago
Which expression is equivalent to the area of metal sheet required to make this square-shaped traffic sign? (5 points) A square
andrezito [222]
The correct answer is d) 4x² - 4x + 1.

The area of a square is found by squaring the side length:

(2x-1)² = (2x-1)(2x-1) = 2x*2x - 2x*1 - 2x*1 - 1(-1) = 4x² - 2x - 2x + 1 = 4x²-4x+1
3 0
3 years ago
Read 2 more answers
The formula v= u+ atdescribes connections between u: starting velocity a: acceleration t: time v: final velocity a)In a particul
Bess [88]

Answer:

  • 49 = 0 +9.8t
  • t = 5

Step-by-step explanation:

It usually works to follow directions.

a) Substitute the numbers into the formula:

  v = u + at

  49 = 0 +9.8t

b) Solve the equation:

  49/9.8 = t = 5 . . . . . divide by the coefficient of t

6 0
3 years ago
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