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viktelen [127]
3 years ago
11

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}

Step-by-step explanation:

Given

f(x) = 3\sqrt{8x} + 4

Required

Complete the steps to determine the inverse function

Solving (a): Complete the blanks

Switch x and y, and solve for y

Solving (b): Determine the inverse function

f(x) = \sqrt[3]{8x} + 4

Replace f(x) with y

y = \sqrt[3]{8x} + 4

Switch x and y

x = \sqrt[3]{8y} + 4

<u>Now, we solve for y</u>

Subtract 4 from both sides

x -4= \sqrt[3]{8y} + 4-4

x -4= \sqrt[3]{8y}

Take cube roots of both sides

(x -4)^3= 8y

Divide both sides by 8

\frac{(x -4)^3}{8} = y

So, we have:

y =\frac{(x -4)^3}{8}

Hence, the inverse function is:

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

7 0
3 years ago
The number of men and women receiving bachelor's degrees each year has been steadily increasing. For the years 1970 through the
UkoKoshka [18]

Answer:

the answer is A

4 0
3 years ago
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