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3 years ago

What’s a function in math

Mathematics

2 answers:

Norma-Jean [14]3 years ago

6 0

Answer:

A relation from a set of inputs to a set of possible outputs where each input is related to exactly one output

Step-by-step explanation:

Aleksandr-060686 [28]3 years ago

3 0

Answer:

See below.

Step-by-step explanation:

A function is a relation in which each input has only one output.

For example f(x) = 3x + 1 is a function. Whatever value of x you use the value of f(x) is only one value.

But the relation y = √x is not a function because for example if x = 4 then x = 2 or -2 - two outputs for the same input.

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PLEASE PLEASE HELP TIME RUNNING OUT WILL AWARD 20 POINTS

Trava [24]

(x+4)(x+4+1) = (x+1)(x+1+11)
(x+4)(x+5) = (x+1)(x+12)
x^2 + 4x+5x+20=x^2+x+12x+12
9x + 20 = 13x + 12
13x-9x = 20-12
4x = 8
x = 2

7 0

3 years ago

Read 2 more answers

One day, eleven babies are born at a hospital. Assuming each baby has an equal chance of being a boy or girl, what is the probab

Andrews [41]

You only need to consider the situations where 10 or 11 of the babies are girls, then subtract those probabilities from 1. This will give probability that any other number up to 9 of the babies are girls.

Use binomial theorem.
$P(x=k) = (nCk) p^k (1-p)^{n-k}$

n = 11
k = 10,11
p = 1/2

$P(x=10) = 11 (\frac{1}{2})^{11} = \frac{11}{2048} \\ \\ P(x=11) = 1(\frac{1}{2})^{11} = \frac{1}{2048} \\ \\ P(x \leq 9) = 1 - \frac{11}{2048} - \frac{1}{2048} \\ \\ P(x \leq 9)=\frac{2036}{2048} = \frac{509}{512}$

4 0

3 years ago

The initial population of a town in the year 2010 was 20 000. By 2014, the population had grown exponentially to 32 500 people.

stiv31 [10]

Answer:

P = 20000×1.625^(n/4)

Step-by-step explanation:

An exponential equation can be written using the given data:

value = (initial value)×(growth factor in period)^(n/(period))

Here, the growth is by a factor of 32500/20000 = 1.625, and the period is 4 years. Then your exponential equation is ...

P = 20000×1.625^(n/4)

3 0

3 years ago

What does relationship mean in algebra/ math?

NikAS [45]

Answer:

A relation is a relationship between sets of values. In math, the relation is between the x-values and y-values of ordered pairs. The set of all x-values is called the domain, and the set of all y-values is called the range. ... The range consists of the y-values from each ordered pair.

7 0

3 years ago

Need help on this guys, help pls.

marusya05 [52]

Answer:

1,740 261

20+3

Final answer 23

Step-by-step explanation:

Sorry If I am wrong.

4 0

3 years ago