3 years ago

What is the part and whole of 40% of 20?

Mathematics

1 answer:

pashok25 [27]3 years ago

5 0

The answer is 8

I hope this helps!

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Let f(x) = x2 − 16. Find f−1(x)

Yanka [14]

Answer:

$f^{-1}(x)=\pm\sqrt{x+16}$

Step-by-step explanation:

$f(x)=x^2-16$

To find the inverse of this function, temporarily the f(x) with a y (or whatever else you want) and then solve for the x.

$y=x^2-16\\y+16=x^2\\x=\pm\sqrt{y+16}$

Now, you can swap the variables again and write the function.

$f^{-1}(x)=\pm\sqrt{x+16}$

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2 years ago

~Factorise~ : x³ + 4x<br>with the steps

GrogVix [38]

Answer:

x (x^2+4)

Step-by-step explanation:

See the steps below:)

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3 years ago

If eight persons are having dinner together, in how many different ways can three order chicken, four order steak, and one order

Readme [11.4K]

Answer:

Total number of ways= 144 ways

Step-by-step explanation:

Number of ways 3 can order chicken

= 3!

= 3*2*1

= 6

Number of ways 4 can order steak

= 4!

= 4*3*2*1

= 24

Number of ways 1 can order lobster

= 1!

= 1

Total number of ways= 24*6*1

Total number of ways= 144 ways

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3 years ago

Help me out! plsss

a_sh-v [17]

Answer:

Step-by-step explanation:

ITS THE THRID ONE!

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3 years ago

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BRAINLIEST, THANKS AND 5 STARS IF ANSWERED CORRECTLY.

statuscvo [17]

B has two pre-images of -7 so it is not a function

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3 years ago

Read 2 more answers