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2 years ago

10

PLESE HELP ILL GIVE BRAINLIEST!,!!!!!

2 answers:

Bogdan [553]2 years ago

5 0

Answer:

9.8x + 1.1y + 9.9z

Step-by-step explanation:

$\textsf {The perimeter is the sum of the side lengths.}$

$\textsf {Hence, the perimeter is :}$

⇒ 5.5x + 6.2y + 4.3x + 8.3z + 1.6z - 5.1y

⇒ 9.8x + 1.1y + 9.9z

Tasya [4]2 years ago

5 0

Answer: C) 9.8x + 1.1y + 9.9z

Step-by-Step Explanation:

Perimeter = Side + Side + Side

Therefore,
= 5.5x + 6.2y + 4.3x + 8.3z + 1.6z - 5.1y
= (5.5 + 4.3)x + (6.2 - 5.1)y + (8.3 + 1.6)z
= 9.8x + (6.2 - 5.1)y + (8.3 + 1.6)z
= 9.8x + 1.1y + (8.3 + 1.6)z
=> 9.8x + 1.1y + 9.9z

Perimeter = 9.8x + 1.1y + 9.9z cm

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