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3 years ago

Helppppp it’s an emergency!!!!!

Mathematics

1 answer:

Feliz [49]3 years ago

8 0

Answer:

Equation: $2(x+8)+2(3x-5)+23 = 126$

$x = 12.125$ m

$AB = 20.125$ m

$EF=31.375$ m

Step-by-step explanation:

The equation of the perimeter of this shape can be written as: $2(x+8)+2(3x-5)+23 = 126$ (Sides with the same number of dashes are equal in length)

Which becomes:

$2x+16+6x-10+23=126$

$8x+29=126$

$8x=97$

$x= 12.125$

Since AB = $x+8$ , we can substitute to get the length of AB:

$x+8 = 12.125+8$

$=20.125$

We can also use substitution to solve for the length of EF:

$3x-5=3(12.125)-5$

$=31.375$

Hope this helps :)

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If a = [ $\\ a_{1}, a_{2}, a_{3}$ ] and b = [ $\\ b_{1}, b_{2}, b_{3}$ ], then the dot product is simply a number (not a vector) obtained from:

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The norm of a vector (its length) is, for instance, |a| = $\\ \sqrt{{a_{1}^2 + {a_{2}}^2 + {a_{3}}^2}$ , for a vector in $\\ R^{3}$ .

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<h3>Angle of the triangle for vertex in (1, 1, 1)</h3>

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