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3 years ago

How do I know how to determine whether a relation is a function? What is a function?

2 answers:

8 0

It’s a function is every single input has their own output. for example, if there were 2 -3’a on the input side, the relation wouldn’t be a function because each input has to have their OWN output, and can’t share outputs.

scoundrel [369]3 years ago

5 0

Answer:

all are functions

Step-by-step explanation:

a function is when each x has a y

a relation is when 1 x has more than 1 y which makes it invalid therefore not a function

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Can you guys pls help me out with both questions

masya89 [10]

fixed cost =$ 99

variable cost per hour = $ 19

total cost can be given as

t = 99 + 19h

where h is number of hours vehicle used.

4) weekend daily cost is $ 29.99

total day she rented = friday + saturday + sunday = 3 days

so total rent = 29.99 × 3 = $ 89.97

4 0

3 years ago

A random variable x is normally distributed with a mean of 100 and a variance of 25. Given that x = 110, its corresponding z- sc

Rashid [163]

A random variable x is normally distributed with a mean of 100 and a variance of 25. Given that x = 110, its corresponding z- score is 0.40.

Answer: The given z-score is false.

Explanation: We are given:

Mean, $\mu=100$ ,

Variance, $\sigma^{2}=25$

$\therefore\sigma=\sqrt{\sigma^{2}}$

$=\sqrt{25}$

$=5$

The z-score formula is given below:

$z=\frac{x-\mu}{\sigma}$

$=\frac{110-100}{5}$

$=\frac{10}{5}$

$=2$

Therefore, the z-score corresponding x=100 is 2

Therefore, the given z-score = 0.4 is false.

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4 years ago

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Kruka [31]

check the picture below.

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3 years ago

Wuts 20x306 i dont noo it

Ganezh [65]

Answer:

6120

Step-by-step explanation:

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3 years ago

Read 2 more answers

I am sus lol so here is some points

Masja [62]

Hello.

Have a beautiful and joyful day ahead

Thanks for points..

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3 years ago