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3 years ago

Is this relationship a function? (1,2) (2,9) (3,-2) (4,8)?

Mathematics

1 answer:

olganol [36]3 years ago

6 0

Answer:

yes, it's a function

Step-by-step explanation:

A function relates one input to one output, and it's "only" one output.

You might be interested in

What is the common ratio and explicit formula for -2,6,-18,54?

Snezhnost [94]

Answer:

The explicit formula for a given geometric sequence is of the form

$a_{4} =\frac{1}{(a_{1})^4}$

Step-by-step explanation:

Given sequence is ${\{-2,6,-18,54}\}$

Let $a_{1}=-2,a_{2}=6,a_{3}=-18,a_{4}=54$

To find the common ratio r:

$r=\frac{a_{2}}{a_{1}}$

$=\frac{6}{-2}$

$=-3$

Therefore r=-3

$r=\frac{a_{3}}{a_{2}}$

$=\frac{-18}{6}$

$=-3$

Therefore r=-3

Therefore common ratio is -3

Therefore given sequence is geometric sequence.

The explicit formula for a geometric sequence is $a_{n}=a_{1}^{r-1}$ , where common ratio is r.

From given sequence we are having r=-3

Therefore the explicit formula for a given geometric sequence is of the form $a_{4} =a_{1}^{-3-1}$

$a_{4} =a_{1}^{-4}$

$a_{4} =\frac{1}{(a_{1})^4}$

6 0

2 years ago

Solve this linear equation for p.

DedPeter [7]

Answer:

$2.6(5.5p - 12.4) = 127.92 \\ 5.5p - 12.4 = 49.2 \\ 5.5p = 61.6 \\ p = 11.2$

8 0

2 years ago

Read 2 more answers

For an average adult the surface area of the skin is about 19,000 square cm and the thickness of the skin ranges from about 0.5

timama [110]

That's not actually true for "this page", but I know what you mean.

19,000 / 630 = about <u>30 sheets</u> of A4 paper to cover an average adult's body.

You may be on to a new fashion trend here.

3 0

2 years ago

Is 4y - 8 > 10 true?

steposvetlana [31]

4y-8>10

Add 8

4y-8+8>10+8

4y>18

Now divide both sides by 4

4y/4 > 18/4

y>9/2

Now let's see if it will be true

Replace y by its value

4(9/2)-8>10

36/2 -8 > 10

18-8 > 10

10 > 10

That's false because 10 can not smaller than 10

so it should be = instead

Answer : False

I hope that's help:)

7 0

2 years ago

Oxana [17]

Answer: The measurement of angle B is 34. The measurement of angle C is 108. The measurement of angle F is 72.

Step-by-step explanation:

4 0

2 years ago