HELP ASAP PLZ What is the area of this figure? Enter your answer in the box. m² A right trapezoid with the right angles side measuring 18 m. the long side has a triangle attached to it with a short leg length of 8 m and a long leg length of 16 m. The small side of the trapezoid measures 18 m.

  352 m²

Step-by-step explanation:

We assume you have the figure shown below. Its area can be computed a couple of ways:

1. Area of Rectangle + Area of Triangle

  The area of the rectangle is the product of its dimensions:

  18 m × 16 m = 288 m²

  The area of the triangle is half the product of its base and height:

  (1/2)(8 m)(16 m) = 64 m²

Then the area of the trapezoid is ...

  288 m² +64 m² = 352 m²

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2. Area of Trapezoid

  The long base of the trapezoid has length 18 m + 8 m = 26 m. This can be used in the formula for the area of a trapezoid:

  A = (1/2)(b1 +b2)h

  = (1/2)(26 m +18 m)(16 m) = 352 m²

The area of the figure is 352 m².

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step-by-step explanation:

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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