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Phoenix [80]
2 years ago
14

Question

Mathematics
1 answer:
Vesnalui [34]2 years ago
4 0

Answer:

width is 4

height is 20

Step-by-step explanation:

Area=½ width × height

let the width be x

height will be 6x - 4

40 = ½ × x × (6x - 4)

40 = 2/2 × 3x² - 2x

40 = 3x² - 2x

3x² - 2x - 40 = 0

3x² -12x + 10x - 40 = 0

3x(x-4) + 10(x-4) = 0

(3x + 10)(x - 4) = 0

x = -10/3 or 4

dimension cannot be negative

x is 4

6x-4= 6(4) - 4

24 - 4

20

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Pls answer first one to get it right and show work will get brainliest thanks :3
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Answer:

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Step-by-step explanation:

2(1.5x−2)=−0.5(−4x−32)

Step 1: Simplify both sides of the equation.

−2(1.5x−2)=−0.5(−4x−32)

(−2)(1.5x)+(−2)(−2)=(−0.5)(−4x)+(−0.5)(−32)(Distribute)

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Step 2: Subtract 2x from both sides.

−3x+4−2x=2x+16−2x

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Step 3: Subtract 4 from both sides.

−5x+4−4=16−4

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Step 4: Divide both sides by -5.

−5x−5

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x=−12/5

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