3 years ago

Find the area of the triangle. PLEASE HELP ASAP!

Mathematics

1 answer:

tatyana61 [14]3 years ago

5 0

Answer:

D 111.4 cm²

Step-by-step explanation:

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Step-by-step explanation:

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A sequence is defined by the recursive function f(n + 1) = one-halff(n). If f(3) = 9 , what is f(1) ? 1 3 27 81

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. The exterior angles of a triangle are (2x+10)⁰, (3x-5) ⁰ and (2x+40) ⁰.

Pepsi [2]

The exterior angles of a triangle are (2x+10)⁰, (3x-5) ⁰ and (2x+40) ⁰

To get interior angle for each , subtract from 180

$180-(2x+10)=170-2x\\180-(3x-5)=185-3x\\180-(2x+40)= 140-2x$

Sum of interior angles = 180

$170-2x+185-3x+140-2x=180$

$-7x+170+185+140=180\\-7x+495=180\\-7x+495-495=180-495\\-7x=-315\\x=45$

$170-2x=170-2(45)=80\\185-3x=185-3(45)=50\\140-2x=140-2(45)=50$

Answer: x=45

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largest interior angle = 80 degrees

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what is the equation of a line hat is perpindicular to x=-6 abd that passes throught the point (-1,-2)

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