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3 years ago

9

PLEASE HELP!!!! How do I show the work to find the area of this composite figure. The answer is 81.8km I just don’t know how to

show the work.

1 answer:

Ket [755]3 years ago

6 0

(area of the half-cirlce) + (area of the triange) + (area of the rectangle) + (area of biggest triangle) + (area of 2 congruent trianges)

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Fudgin [204]

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3 years ago

If four times of a number is added to seven the result is 92

MA_775_DIABLO [31]

Answer:

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3 years ago

The first term of an arithmetic sequence is -5, and the tenth term is 13. Find the common difference.

dlinn [17]

$\bf n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ d=\textit{common difference}\\[-0.5em] \hrulefill\\ a_1=-5\\ n=10\\ a_{10}=13 \end{cases} \\\\\\ a_{10}=a_1+(10-1)d\implies 13=-5+(10-1)d \\\\\\ 13=-5+9d\implies 18=9d\implies \cfrac{18}{9}=d\implies \boxed{2=d}$

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3 years ago