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3 years ago

If you help, i give brainliest!

Mathematics

1 answer:

topjm [15]3 years ago

3 0

Answer:

m<E = $77^{o}$

Step-by-step explanation:

From the diagram, ΔACE and ΔBDE are similar. So that comparing its angles, we have;

(8x + 4) = (9x - 5)

8x + 4 = 9x - 5

5 + 4 = 9x - 8x

x = 9

Thus,

(8x + 4) = 8(9) + 4 = 76

(9x - 5) = 9(9) - 5 = 76

3x = 3(9) = 27

From ΔACE,

3x + (8x + 4) + m<E = 180 (sum of angles in a triangle)

27 + 76 + m<E = 180

m<E = 180 - 103

m<E = $77^{o}$

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3 years ago

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Find the equation of the line that passes through the point of intersection of x + 2y = 9 and 4x -2y = -4 and the point of inter

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Answer:

$y=-6x+10$

Step-by-step explanation:

The point of intersection of

$x+2y=9...eqn1$

and

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$3x+7y=-8...eqn(4)$

We subtract equation (3) from equation (4) to obtain,

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We substitute this value into equation (4) to get,

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The line also passes through

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The slope of the line is

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The equation of the line is

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3 years ago

Every floor of a 20 storey building is 5m in high. If a lift moves 2m every second, how long will it take to move from 3rd floor

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Answer:

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Step-by-step explanation:

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