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4 years ago

What is the y-value of sin(x) when x= -360°?

Mathematics

1 answer:

Zepler [3.9K]4 years ago

3 0

Go clockwise around the unit circle 360°. You'll end up at (1,0).
sin(-360°) = 0

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Nastasia [14]

Answer:

Step-by-step explanation:

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3 years ago

Hmmmmmmmmmmmmmmmmmmmmmmmmmmm

belka [17]

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4 years ago

Please show work. thank you!

ioda

Answer:

$\large\boxed{h=\dfrac{\sqrt{703}}{2}ft\approx13.26ft}$

Step-by-step explanation:

Look at the picture.

Use the Pythagorean theorem:

$leg^2+leg^2=hypotenuse^2$

We have:

$leg=\dfrac{9}{2}ft\\\\hypotenuse=14ft\\\\leg=h$

Substitute:

$\left(\dfrac{9}{2}\right)^2+h^2=14^2$

$\dfrac{81}{4}+h^2=196$ multiply both sides by 4

$81+4h^2=784$ subtract 81 from both sides

$4h^2=703$ divide both sides by 4

$h^2=\dfrac{703}{4}\to h=\sqrt{\dfrac{703}{4}}\\\\h=\dfrac{\sqrt{703}}{\sqrt4}\\\\h=\dfrac{\sqrt{703}}{2}\\\\h\approx13.26$

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4 years ago

Please help with the 2 questions ive attached, i dont understand it at all

vesna_86 [32]

Answer:

see explanation

Step-by-step explanation:

(a)

Consider the denominator

To obtain 5xy from x , multiply by 5y

Thus numerator is multiplied by 5y, that is

$\frac{1}{x}$ = $\frac{5y}{5xy}$

(b)

Consider the numerator

To obtain 5ab² from ab, multiply by 5b

Thus denominator is multiplied by 5b, that is

$\frac{ab}{2c}$ = $\frac{5ab^2}{10bc}$

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3 years ago

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ANEK [815]

Answer:

B. could be the answer for me

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3 years ago

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