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3 years ago

Please, help I have great difficulty with this question.

Mathematics

2 answers:

Dominik [7]3 years ago

8 0

the sum of the interior angles of a quadrilateral is 360°

so..

3x + 2x + x + 90 = 360

to find x..

3x + 2x + x + 90 = 360

3x + 2x + x = 360 - 90

6x = 270

x = 270/6

x = 45..

so x = 45

Nana76 [90]3 years ago

8 0

Answer:

They are not parallel

Step-by-step explanation:

the sides are two different things that doesn't make it parallel

(1) the are different sizes without the scale and

(2) the aren't at the same way when pointing both sides the same way as each other.

I hope I helped out!

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$\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}$

the given expression can be solved as follows ~

$\frac{x}{13} - 1 = \frac{5x}{2} + \frac{1}{2} \\$

taking LCM both the sides ,

$\frac{x - 13}{13} = \frac{5x + 1}{2} \\$

on cross multiplying ,

$(x - 13)2 = (5x + 1)13 \\ \\ \implies \: 2x - 26 = 65x + 13$

let's now gather the like terms at either sides of the equation ~

$65x - 2x = - 26 - 13 \\ \\ \implies \: 63x = - 39 \\ \\ \implies \: x = \frac{\cancel{ - 39}}{\cancel{63}}$

on simplifying the equation ,

$\implies \frac{-13}{21}\\$

hope helpful ~

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1 year ago

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4 years ago

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