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3 years ago

5

Give example of a function f: N-> N which is:

1 answer:

stiv31 [10]3 years ago

8 0

An injective function is not a function that is surjective. This means that you want a function that has a unique output for each input, that doesn't cover the natural numbers.
In formal terms a function [Math Processing Error] is injective if [Math Processing Error] implies [Math Processing Error].

We also know that it's not surjective because no value maps to [Math Processing Error] (or any odd number) since if [Math Processing Error], then [Math Processing Error]. However, since [Math Processing Error], the function isn't surjective.

Answer is B.
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What is the length of the unknown leg

likoan [24]

Answer:

6 mm

Step-by-step explanation:

Use the Pythagorean Theorem to solve for the unknown leg

$a^{2} +b^{2}=c^{2}$

Since we need to solve for a, we will manipulate the equation in terms of b and c → $a=\sqrt{c^{2}-b^{2} }$

Here, b = 7 mm and c = $\sqrt{85}$ mm

Plugging these numbers into our equation gives us $a=\sqrt{(\sqrt{85})^{2} -(7)^{2} }$ → $\sqrt{85-49}$ = $\sqrt{36}$ = 6 mm

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3 years ago

Please help thanks!!!

tankabanditka [31]

Answer:

30 or 780 is your answer for the first one. i dont know how to work out the answer for the 2 one im sorry :(

Step-by-step explanation:

13+12+5 = 30

13 x 12 x 5 = 780

I would go for 780

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5 0

3 years ago

a computer diagnostic program has completed 2/3 of it's analysis. if the analysis requires 1 second to complete 1/6 of the analy

Svet_ta [14]

The computer will finish in 2 seconds

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4 0

3 years ago

Read 2 more answers

A cylinder has a volume of 400 cubic feet. If the height of the cylinder is 25 feet, what is the radius of the cylinder? Use 3.

Lisa [10]

The radius of the cylinder will be $r=2.25ft$

<h3>What will be the radius of the cylinder?</h3>

It is given that

$Volume of the cylinder = 400 ft^{3}$

$height of the cylinder= 25 ft^{3}$

Now we know that

$Volume of the cylinder = \pi r^{2} h$

putting values in the formula

$400= \pi \times r^{2} \times25$

$r= \dfrac{4}{\sqrt{3.14} }$

$r=2.25 ft$

Thus the radius of the cylinder will be $r=2.25ft$

To learn more about the Volume of the cylinder follow

brainly.com/question/9554871

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2 years ago

What is the scientific notation to 427 thousand

Ugo [173]

Answer:

427× $10^{3}$

6 0

3 years ago