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Kruka [31]
3 years ago
6

Please help. I don't understand​

Mathematics
1 answer:
GaryK [48]3 years ago
6 0

9514 1404 393

Answer:

  8m³ -4m² +3m

Step-by-step explanation:

The perimeter of a triangle is the sum of the lengths of its three sides. Here, you're given the perimeter and two of the sides. The third side will be the length that makes up the difference.

  P = side 1 + side 2 + side 3

  18m³ +2m² -m = (5m³ +3m² -2m) +(5m³ +3m² -2m) + side 3

  18m³ +2m² -m = (10m³ +6m² -4m) + side 3 . . . . . collect terms

  18m³ +2m² -m - (10m³ +6m² -4m) = side 3 . . . . . subtract (10m³ +6m² -4m)

  m³(18 -10) +m²(2 -6) +m(-1 +4) = side 3 . . . . . . . . . group like terms

  8m³ -4m² +3m = side 3

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que condiciones debe cumplir las medidas de un triangulo para que puedas asegurar que es un triangulo rectangulo
nirvana33 [79]

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3 0
3 years ago
Please help me out please ..
serg [7]

Answer:

x = 466.7 ft

Step-by-step explanation:

The lower angle in the right triangle = 31° ( alternate angle )

Using the cosine ratio in the right triangle, with hypotenuse x

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7 0
3 years ago
Read 2 more answers
PLEASE SOMEONE HELP!!!!!!
Ray Of Light [21]

Answer:

  1394

Step-by-step explanation:

You can derive a formula for the k-th term of the sequence, but for a few terms, it is just as easy to evaluate them.

  P₂₀₁₉ = 0.81(P₂₀₁₈ +25) = 0.81(2530 +25) = 2069.55

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At the start of 2021, there are predicted to be 1394 eagles in the park.

4 0
3 years ago
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