3 years ago

The domain of F(x) is the set of all numbers greater than or equal to 0 and less than it equal to 2

Mathematics

1 answer:

antoniya [11.8K]3 years ago

7 0

Its false cause its not the set of all numbers

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3 years ago

Which angle has a sine of -1/2 and a cosine of -√3/2

Sergeeva-Olga [200]

$\sin x=-\dfrac{1}{2} < 0\\\\\cos x=-\dfrac{\sqrt3}{2} < 0\\\\therefore\ x\in(180^o;\ 270^o)$

$\text{We know:}\ \tan x=\dfrac{\sin x}{\cos x}\\\\\text{therefore:}\ \tan x=\dfrac{-\frac{1}{2}}{-\frac{\sqrt3}{2}}=\dfrac{1}{2}\cdot\dfrac{2}{\sqrt3}=\dfrac{1}{\sqrt3}\cdot\dfrac{\sqrt3}{\sqrt3}=\dfrac{\sqrt3}{3}$

$\tan x=\dfrac{\sqrt3}{3}\Rightarrow x=30^o+180^o\cdot k;\ k\in\mathbb{Z}$

$x\in(180^o;\ 270^o)\ therefore\ \boxed{x=30^o+180^o=210^o}$

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3 years ago

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Dafna11 [192]

Answer: The answer is (y^2) to the power of -0.5

Step-by-step explanation:

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Quirky Elf has 3.36 kilograms of fudge and 2.28 kilograms of divinity candy. He estimates that he has about 1 more kilogram of f

inysia [295]

Answer:

yes

Step-by-step explanation:

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3 years ago

X + 11 = 3 so the equation

Mnenie [13.5K]

X+11=3
-11 -11
x=-8

you subtract 11 from both sides. then you got the answer.

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2 years ago