PLEASE HELP THIS IS EASY BUT I DONT GET IT

Mathematics

2 answers:

kirill [66]3 years ago

4 0

There are 12 month in year, and every month the the state pays 310.37 dollars for a full time employee
Simply multiply 310.37 by 12 to get your yearly cost.
310.37×12=3,724.44
Your answer is 3,724.44 dollars

RSB [31]3 years ago

3 0

9900,000 hope I helped

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A triangular plaque has side lengths of 8 inches, 13 inches, and 15 inches.

lianna [129]

<h3>Answer: A) 52 square inches</h3>

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Explanation:

a = 8, b = 13, and c = 15 are the sides of the triangle

s = (a+b+c)/2 = (8+13+15)/2 = 18 is the semi-perimeter, aka half the perimeter.

Those values are then plugged into Heron's Formula below

$A = \sqrt{s*(s-a)*(s-b)*(s-c)}\\\\A = \sqrt{18*(18-8)*(18-13)*(18-15)}\\\\A = \sqrt{18*(10)*(5)*(3)}\\\\A = \sqrt{2700}\\\\A = \sqrt{900*3}\\\\A = \sqrt{900}*\sqrt{3}\\\\A = 30\sqrt{3}\\\\A \approx 51.9615\\\\A \approx 52\\\\$