2 years ago

-5x + y = 56 and x + y = -4

Mathematics

1 answer:

12345 [234]2 years ago

6 0

The slope of -5x + y = 56 is 5

the slope of x + y = -4 is -1

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Can you work out G and H for me please. preferably telling me how you did it aswell

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Abd is a right angled triangle so by pythagoras we know
${g}^{2} = {11}^{2} + {13}^{2} \\ {g}^{2} = 290 \\ g = \sqrt{290} \: or \: g = 17.03cm$
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$\frac{h}{ \sin(22) } = \frac{g}{ \sin(32) } \\ \frac{h}{ \sin(22) } = \frac{17.03}{ \sin(32) } \\ h = \frac{17.03}{ \sin(32) } \times \sin(22) \\ h = 12.04cm$
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3 years ago

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A line that passes through an angle and splits it into two equal adjacent angles

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2 years ago

Solve for x -9<4x+3<27 enter your answer as one inequality in the box

ludmilkaskok [199]

If a< c< b then a<c and c<b

Separate the equation into 2 separate ones and solve them:

X-9 < 4x +3

Subtract 3 from both sides:

X-12 < 4x

Subtract x from both sides:

-12< 3x

Divide both sides by 3:

X > -4

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Subtract 3 from both sides

4x < 24

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Combine to get one inequality:

-4<x<6

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