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3 years ago

How can we recognize a proportional relationship when looking at a table or a set of ratios?

Mathematics

1 answer:

anygoal [31]3 years ago

7 0

Proportional Numbers should be in a straight line on a plot when graphed out

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You have a function that takes in an X value and produces a Y value. The y value equals 24 times the x value, plus 4 more. What'

AlekseyPX

Answer:

They "y" value = (4 * 24) + 4 which equals

100

Step-by-step explanation:

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2 years ago

Will give brainliest! please answer!

Montano1993 [528]

Answer:

Step-by-step explanation:

933 + the cost <=1500

933+ c <=1500

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3 years ago

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The above is a a a a a a a a a a a a a a a a a a a

Reptile [31]

X f πxf

-1 2 -2

3 1 3

-1 -2 2

0 -3 0

total =3

mean (π)=πxf ÷n

= 3÷4

= 0.75 these is not answer I thank so

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3 years ago

4 cos²x – 1=0<br><br> What is the solution?

andreev551 [17]

Answer:

$x=\frac{\pi }{3}+2\pi n, n\in \mathbb{Z}$

$\:x=\frac{5\pi }{3}+2\pi n, n \in \mathbb{Z}$

$x=\frac{2\pi }{3}+2\pi n, n\in \mathbb{Z}$

$\:x=\frac{4\pi }{3}+2\pi n, n \in \mathbb{Z}$

$x=\frac{\pi}{3}+\pi n, n \in \mathbb{Z}$

$x=\frac{2\pi }{3}+\pi n, n\in \mathbb{Z}$

Step-by-step explanation:

$4\text{cos}^2(x)-1=0\\4\text{cos}^2(x)=1\\$

$cos(x)=\pm\sqrt{\frac{1}{4} }$

$cos(x)=\pm\frac{1}{2}$

So, when cos(x) is equal to

$\frac{1}{2} \text{ and } -\frac{1}{2}$ ?

For

$cos(x)=\frac{1}{2}$

We are talking about x = 60º and x = 300º, Quadrant I and IV, respectively. In radians:

$x=\frac{\pi }{3}+2\pi n, n\in \mathbb{Z}$

$\:x=\frac{5\pi }{3}+2\pi n, n \in \mathbb{Z}$

$x=\frac{\pi}{3}+\pi n, n \in \mathbb{Z}$

For

$cos(x)=-\frac{1}{2}$

We are talking about x = 120º and x = 240º, Quadrant II and III, respectively. In radians:

$x=\frac{2\pi }{3}+2\pi n, n\in \mathbb{Z}$

$\:x=\frac{4\pi }{3}+2\pi n, n \in \mathbb{Z}$

$x=\frac{2\pi }{3}+\pi n, n\in \mathbb{Z}$

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3 years ago

Could you help me, pls? :c

Airida [17]

Answer:

lolshdusudyudhdgfhfhd

6 0

3 years ago

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