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Vsevolod [243]
3 years ago
15

Which table shows a proportional relationship?

Mathematics
2 answers:
swat323 years ago
8 0
Number 4 is proportionality relationship
sweet-ann [11.9K]3 years ago
3 0

Answer:

Table N 1

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

In this problem the table N 1 represent a proportional relationship

Find the value of k

R/S=k

For R=5, S=1

substitute

tex]k=5/1=5[/tex]

For R=10, S=2

substitute

k=10/2=5

For R=15, S=3

substitute

k=15/3=5

For R=20, S=4

substitute

k=20/4=5

For R=25, S=5

substitute

k=25/5=5

the equation of the proportional relationship is equal to

R=5S

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Some number was divided into 42. This quotient was then multiplied by 8,after which the resulting product was added to 10. Given
AURORKA [14]

Answer:

126

Step-by-step explanation:

In order to find the initial number, we need to create the expression that is being mentioned and solve for the initial value by applying the opposite expressions to isolate the variable.

(((x / 42) * 8) + 10) = 34   ... subtract 10 from both sides

((x / 42) * 8) = 24 ... divide both sides by 8

(x / 42) = 3  ... multiply both sides by 42

x = 126

Finally, we can see that the initial value was 126

5 0
3 years ago
Given the graph of f(x), determine the range of f−1(x).
11Alexandr11 [23.1K]

The graph of f(x) has a horizontal asymptote at y = 3, so its range is the interval union (-∞, 3) U (3, ∞).

The domain of its inverse is the same as the range of f, so the fourth option is correct.

7 0
2 years ago
HELP PLZ! <br><br>please answer 13 and 14.
AURORKA [14]
13. The words are telling you
.. HT +TS = HM +MS +2
.. (2x +1) +(x) = (x +1) +(x +2) +2
.. 3x +1 = 2x +5 . . . . . . . . . . . . . . collect terms
.. x = 4 . . . . . . . . . . . . . . . . . . . . . add -2x-1

HT +TS = 3x +1 = 3*4 +1 = 13 miles

The route via the theater is 13 miles.
Via the mall, the route is 11 miles.


14. Solve this the way you would any 2-step linear equation. Subtract terms that don't have h, and divide by the coefficient of h.

S = 2πr^2 +2πrh
S -2πr^2 = 2πrh
(S -2πr^2)/(2πr) = h

If you like, you can rearrange this to
.. h = (S/(2πr)) -r
3 0
4 years ago
the Rockets lost three of the 20 games played this season what fraction of the game did the Rockets lose?
Marat540 [252]

Answer:

So I add 20** First , & took away 3 because it says the rocket lost  3 of the 20** Games , & he lost 17 if you take away it you will have to do 3-20 & you will get _17

Step-by-step explanation:

20-3 =17 he lost 17 .

4 0
3 years ago
The quadratic function f(x) = -x2 - 6x - 8 is graphed.
Alona [7]

Answer:

-2 and -4

Step-by-step explanation:

When the quadratic equation equals 0, that means when y = 0.

By looking at the graph, whenever y = 0 is when the graph crosses the x-axis.

The graph crosses the x-axis at only two points:

(-4, 0) and (-2, 0)

So the solutions to the graph when  -x^2 - 6x - 8 equals 0 is -2 & -4.

Hope it helps (●'◡'●)

7 0
3 years ago
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