3 years ago

HELP ME PLSSS !!!!!! thank you <3333333

Mathematics

1 answer:

liq [111]3 years ago

7 0

Answer:

Step-by-step explanation:

what x value gives y= 0

it's seen that when y = 0 , the value of x is 5

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nadya68 [22]

Part 1) To find the measure of ∠A in ∆ABC, use

we know that

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$\frac{a}{sin\ A}=\frac{b}{sin\ B}=\frac{c}{sin\ C}$

in this problem we have

$\frac{a}{sin\ A}=\frac{b}{sin\ theta}\\ \\a*sin\ theta=b*sin\ A\\ \\ sin\ A=\frac{a*sin\ theta}{b} \\ \\ A=arc\ sin (\frac{a*sin\ theta}{b})$

therefore

the answer Part 1) is

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Part 2) To find the length of side HI in ∆HIG, use

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substitute

$HI^{2}=h^{2}+i^{2}-2*h*i*cos\ Beta$

$HI=\sqrt{h^{2}+i^{2}-2*h*i*cos\ Beta}$

therefore

the answer Part 2) is

Law of Cosines

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