Anybody know how to answer this? Explain if you can, please :)

Mathematics

1 answer:

garik1379 [7]3 years ago

5 0

Carrie is 2 and Kim is just born.
you can have,

Carrie = 3 4 5 6
Kim = 1 2 3 4

Or something like that, thats a table btw

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Question 2 help meeee pleaseee<br> Thank you

Paladinen [302]

3 cm/h easy peasy

Step-by-step explanation:

12 cm in 4 hrs
For 1 cm : 12/4 = 3 cm

8 0

2 years ago

5. ¿Cuál es la expresión algebraica que representa el área de la siguiente figura?

Elden [556K]

The correct answer is:

A) 5x + 15

Explanation:
5x is the area of the green square (5•x)

15 is the area of the orange rectangle (5 •3 =15)

To have the total area you have to sum the areas of the two figures: 5x + 15

4 0

3 years ago

Describe the following variation: y/x2=5

Firdavs [7]

We are asked to describe the variation $\displaystyle{ \frac{y}{x^2}=5$ ,

that is $y=5x^2$

for x≠0, in which case x=y=0, we distinguish the following intervals:

I = (-infinity, -1]
II = (-1, 0)
III = (0, 1)
III = [1, infinity)

Case I, consider the cases (examples) x= -5, and x= -6

$5(-6)^2\ \textgreater \ 5(-5)^2$ , so we can conclude that the greater the x, the smaller the y.

Case II, consider x= -1/2 < x=-1/3

$5(-\frac{1}{2})^2= \frac{5}{4}\\\\ 5(-\frac{1}{3})^2= \frac{5}{9}\\\\\frac{5}{9}\ \textless \ \frac{5}{4}$

thus, the greater the x, the smaller the y.

Case III, consider the cases (examples) x= 5, and x= 6

$5(6)^2\ \textgreater \ 5(5)^2$ , so we can conclude that the greater the x, the greater the y.

Case III, consider x= 1/3 < x=1/2

$5(\frac{1}{2})^2= \frac{5}{4}\\\\ 5(\frac{1}{3})^2= \frac{5}{9}\\\\\frac{5}{9}\ \textless \ \frac{5}{4}$

thus, the greater the x, the greater the y.

Conclusion:

y=0 only if x is 0. Otherwise y>0 always:

for x<0, x and y are inversely proportional

for x>0, x and y are directly proportional.

Remark, an other possible consideration in cases could be x<0 and x>0 only.

Remark, another approach is considering the graph of y=5x^2, which is a parabola, with the vertex at (0, 0) opening upwards.

From the graph we can find the same conclusion. That is we can see that the farer we get away from the y-axis, in both direction, the larger the values of y become.

4 0

3 years ago

Drag each tile to the correct location on the image. Each tile can be used more than once, but not all images will be used.

OverLord2011 [107]

Answer:

Switch x and y, and solve for y

$f^{-1}(x) =\frac{(x -4)^3}{8}$