2 years ago

What is the correct answer to this multiple choice question? Please help!

Mathematics

1 answer:

exis [7]2 years ago

8 0

Answer:

p = 26.3

Step-by-step explanation:

Using the law of sines

sin 101 sin 38

--------- = ------------

42 p

Using cross products

p sin 101 = 42 sin 38

p = 42 sin 38 / sin 101

p=26.34175

To the nearest tenth

p = 26.3

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Find the area of quadrilateral ABCD

andreev551 [17]

Answer:

A ≈ 28.5

Step-by-step explanation:

a, b, c

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Semiperimeter s = $\frac{a+b+c}{2}$

A = $\sqrt{s(s-a)(s-b)(s-c)}$

~~~~~~~~~~~~~~~

$P_{ABC}$ = 4.3 + 2.89 + 6.81 = 14

s = 14 ÷ 2 = 7

$A_{ABC}$ = $\sqrt{7(7-4.3)(7-2.89)(7-6.81)}$ = √14.75901 ≈ 3.84

$P_{BCD}$ = 8.59 + 7.58 + 6.81 = 22.98

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guapka [62]

Answer:

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Step-by-step explanation:

19+100=119

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3 years ago

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Step-by-step explanation:

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