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elixir [45]
3 years ago
14

Solve the equation. 12=2+z/-6

Mathematics
2 answers:
Pani-rosa [81]3 years ago
7 0
<h2>Answer:</h2>

<u>The value of z is </u><u>-60</u>

<h2>Step-by-step explanation:</h2>

see the image

Bogdan [553]3 years ago
3 0

Answer:

\boxed{\bold{z=-60}}

Step-by-step explanation:

Switch Sides

\bold{2+\frac{z}{-6}=12}

Subtract 2 From Both Sides

\bold{2+\frac{z}{-6}-2=12-2}

Simplify

\bold{\frac{z}{-6}=10}

Multiply Both Sides By -6

\bold{\frac{z\left(-6\right)}{-6}=10\left(-6\right)}

Simplify

\bold{z=-60}

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Trapezia ABCD and PQRS are similar.<br> Find the area shaded in green.
avanturin [10]

The area shaded in green is 864 cm²

<h3>Similar figures</h3>

Similar figures, corresponding angles are congruent and the sides are ratio of each other. Therefore,

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30RS = 240

RS = 240 / 30

RS = 8 cm

let find the height of trapezium PQRS.

AB / PQ  = 36 / h

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30h = 360

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Therefore,

area of the green portion = area of ABCD - area of PQRS

<h3>Area of a trapezium</h3>
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Therefore,

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Area of the green portion = 972 - 108 = 864 cm²

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