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kondor19780726 [428]
2 years ago
8

PLEASEE HELP 51 POINTS PLEASEE

Mathematics
1 answer:
siniylev [52]2 years ago
6 0

Answer:

Part A is $21 and part B is $30.21

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Write an equation in point-slope form for the line through the given point with the given slope.
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y --9 = -2 (x-10)

y+9 = -2(x-10)

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Need an answer, please need an answer, please​
trasher [3.6K]

Answer:

Step-by-step explanation:

Area = 192 m²

Perimeter= 56 m

Width = x m

Perimeter = 56

2*(length + width) = 56

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l + x = 56/2

l + x = 28

    l = 28 - x

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l * w = 192

(28 - x)*x = 192

28x - x*x = 192

0 = 192 - 28x + x²

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2) Equation is a quadratic equation. The roots of this equation will the dimensions of the rectangular plot.

3) The roots represent the width and length  of the rectangle.

x² - 28x +192 = 0

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x² - 28x + 192 = 0

x² - 12x - 16x + (-16)*(-12) = 0

x(x  -12) - 16(x - 12) = 0

(x - 12)(x -16) =0

x -12 = 0     ; x - 16 = 0

x = 12  ; x = 16

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Sum of the roots = half of the perimeter

5) Product of the roots = 12*16 = 192 =  area of the rectangle.

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2 years ago
Solve the formula for x<br>Gx +Hy=J​
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Answer:

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Step-by-step explanation:

This question is from the topic subject of formula. It implies expressing x in terms of G, H y and J.

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Subtract Hy from both sides to have;

Gx + Hy - Hy = J - Hy

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Then divide both sides by G, so that we have;

x = \frac{J-Hy}{G}

Therefore,

x = \frac{J-Hy}{G}

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There would be one donut left. 3-2=1
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vodka [1.7K]

Answer:

You need to attach a picture of your problem.

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