2 years ago

Write an expression for the perimeter of the triangle shown below

Mathematics

2 answers:

Luba_88 [7]2 years ago

7 0

Answer:

P = 5.5x + 9

Step-by-step explanation:

P = 5x + (0.3x + 24) + (0.2x - 15)

reduced

P = 5.5x + 9

Nadusha1986 [10]2 years ago

6 0

P=5.5+9 hope this helps :)

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densk [106]

$y=2x \newline y= x^{2} -3$

Substitue 2x for y in the second equation:

$2x= x^{2} -3$

Rearrange to $a x^{2} +bx+c=0$ form:

$x^{2} -2x-3=0$

Factor:

$(x-3)(x+1)=0$

Zeros are $x=3$ and $x=-1$

To find y-coordinates of pts of intersection, plug these x-values into first equation to get $y=-2$ and $y=6$