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3 years ago

A function that is injective but not surjective

1 answer:

5 0

An example of an injective function R→R that is not surjective is h(x)=ex. This "hits" all of the positive reals, but misses zero and all of the negative reals. But the key point is the the definitions of injective and surjective depend almost completely on the choice of range and domain.

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What is a sample space?

Arisa [49]

Be more spasific by that

8 0

3 years ago

Write a unit rate for the situation. 1080 miles on 15 gallons Miles per gallon

MissTica

Answer:

72 miles / gallon

Step-by-step explanation:

1080/15 = x/1

1080 / 15 = 72

72 miles on 1 gallon

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

7 0

3 years ago

Read 2 more answers

Please help!

Aleks [24]

Answer:

Probability of picking an even and then even number = $\frac{1}{6}$

Step-by-step explanation:

Probability of picking a card with even number,

P(even 1) = $\frac{\text{favorable outcomes}}{\text{Total outcomes}}$ = $\frac{\text{even cards}}{\text{Total number of cards}}$

= $\frac{2}{4}$

= $\frac{1}{2}$

Followed by picking a card which is even without putting the first card back.

So an even card is to be picked out of remaining 3 cards.

P(even 2) = $\frac{\text{favorable outcomes}}{\text{Total outcomes}}$

= $\frac{1}{3}$

Now probability of both events = P(even 1) × P(even 2)

= $\frac{1}{2}\times \frac{1}{3}$

= $\frac{1}{6}$

Therefore, probability of both the events will be $\frac{1}{6}$ .

5 0

3 years ago

An arithmetic sequence has this recursive formula:

Marianna [84]

Answer:

Option D is the correct option.

please see the attached picture for full solution..

Hope it helps...

Good luck on your assignment...

5 0

3 years ago

5. If the number of employees is represented by x, which function represents the

Ganezh [65]

Consider the missing lines of question are "Due to the Enhanced Community Quarantine, Grand Royal Spa temporarily stopped its operation and to help the employees, the owner decided to split evenly its total revenue of 65,000.00".

Given:

Total revenue = 65000

Number of employees = x

To find:

The function which represents the amount each received.

Solution:

We know that,

$\text{Amount each received}=\dfrac{\text{Total revenue}}{\text{Number of employees}}$

Substitute the given values in the above formula.

$\text{Amount each received}=\dfrac{65000}{x}$

So, the function which represents the amount each received is

$f(x)=\dfrac{65000}{x}$

Therefore, the required function is $f(x)=\dfrac{65000}{x}$ .

Note: Given options are not correct and option C is incomplete.

4 0

3 years ago