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3 years ago

Is the relation a function?

Mathematics

2 answers:

Elenna [48]3 years ago

7 0

Answer:

i believe all you have to do is divide the (x) nums into the (y) nums and if there whole nums it is a function

Step-by-step explanation:

lubasha [3.4K]3 years ago

5 0

Answer:

Yes

Step-by-step explanation:

There is only one y value for each x value. That is the definition of a function.

Hope I helped!!!

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Two quantities vary inversely. If the value of the first is 15 when the value of the second is 18, find the value of the second

vovikov84 [41]

Answer:

The value of second quantity is 27

Step-by-step explanation:

Inverse variation can be represented by the equation xy=k or $y = \frac{k}{x}$ i.e,

y varies inversely as x , if there is some nonzero constant k such that, xy =k or $y = \frac{k}{x}$ where x≠0 and y≠0.

Given: Two quantities vary inversely.

Let x be the first quantity and y be the second quantity if they vary inversely.

then, by definition of inverse variation;

$y = \frac{k}{x}$ .....[1]

Substitute the value of x=15 and y=18 to solve for k;

$18= \frac{k}{15}$

Multiply both sides by 15 we have;

$15\times 18=15 \times \frac{k}{15}$

Simplify:

k=270

now, find the second quantity y using same method when x=10.

then;

after substituting the value of x=10 and k=270 in [1] ;

$y = \frac{270}{10}$

Simplify:

y= 27

Therefore, the second quantity value i.e,y = 27

7 0

3 years ago

Read 2 more answers

I need help fast thx

andre [41]

T will travel 81 m/s because addin six to 21 gives you 27 so take that times three and you get 81 m/s hope this helps

7 0

4 years ago

The length of an arc of a circle is 7.34 units, and the measure of the corresponding central angle is 81°. What is the approxima

Olin [163]

The radius of the circle is 5.2 units if the length of an arc of a circle is 7.34 units, and the measure of the corresponding central angle is 81°

<h3>What is a circle?</h3>

It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)

We have:

Length of the arc of a circle:

s = 7.34 units

The measure of central angle:

θ = 81 degrees = 1.413 radians

s = rθ

r is the radius of the circle

7.34 = r(1.413)

r = 5.19 ≈ 5.2 units

Thus, the radius of the circle is 5.2 units if the length of an arc of a circle is 7.34 units, and the measure of the corresponding central angle is 81°

Learn more about circle here:

brainly.com/question/11833983

#SPJ1

6 0

2 years ago

I NEED YOUR HELP!<br> Use the net to find the lateral area of the prism. <br><br> Answer: m^2

egoroff_w [7]

Ok, to solve this, once again you need to fold this map back up into a 3d shape ( in your head).
What you should see is that the little overhanging sides that had no measurement, now have a measurement. They measure up to be the same as the 3m. sides.
so to find the area of all the rectangles, you need to multiply the base times height. (b)h
I will start from the left of your pic. and work my way to the right...not including the little overhanging ones.
The first one should measure out to be 3(15) =45
The second to be 6(15) =90
The third to be 3(15) =45
The fourth to be 6(15) =90 :)
So you have these, but now you need to get the little over hangers I call them...lol.
The width is 6, same as the rectangle they are attached to. And the picture in your mind should tell you that the height is 3, the same as the width of the skinny rectangles that they attach to in your mind.
Soooo now they measure out to be 3(6) =18. and you just multiply this by two because they are the same area, right? So that would be 36.
ok. Now add all of the areas of the surfaces 45+90+45+90+36 to get a total surface area of.... *drummel please* 306m^2
this means 306m. to the power of 2 if you didn't know.
well, I hope you understand better and I hope I helped! ;)

6 0

3 years ago

Read 2 more answers

Which of the following is equivalent to 36 -1.2

Andrew [12]

Answer:

34.8

Step-by-step explanation:

36-1.2 = 34.8

8 0

3 years ago