3 years ago

Please..Help..Quick

Mathematics

2 answers:

Elza [17]3 years ago

6 0

Answer:

The answer is A

Step-by-step explanation:

Veronika [31]3 years ago

5 0

The answer is A they both get payed 6 dollars per hour

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Chuck drops a rock from a height of 70 m. How long will it take the rock to hit the ground? Use the formula h(t)=−4.9 t 2 + v o

Pachacha [2.7K]

That's the best I could do. I hope it helped

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3 years ago

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LenKa [72]

Answer:

Step-by-step explanation:

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2 years ago

To find the measure of ∠A in ∆ABC, use the___(Pythagorean Theorem, Law of Sines, Law of Cosines). To find the length of side HI

nadya68 [22]

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

we know that

In the triangle ABC

Applying the law of sines

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

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

Law of Sines

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

we know that

In the triangle HIG

Applying the law of cosines

$g^{2}=h^{2}+i^{2}-2*h*i*cos\ G$

In this problem we have

g=HI

G=angle Beta

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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3 years ago

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Studentka2010 [4]

By simplifing it i think

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3 years ago

The area of a 20 cm wide rectangle is 500 cm cm2 what is the length?

ziro4ka [17]

Given = b = 20cm, A = 500cm2 l=?

A = l×b,

500= l×20

l= 25

THE LENGTH IS 25 CM

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3 years ago

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