3 years ago

PLEASE HELP PLEASEEE!!!

Mathematics

2 answers:

Harrizon [31]3 years ago

7 0

Answer:

C to A, C to D, C to B, 3cm and 4 cm

Step-by-step explanation:

Pie3 years ago

5 0

Answer:

C to A, C to D, C to B, 3cm and 4 cm

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4 years ago

What two positive real numbers whose product is 21 have the smallest possible sum?

GalinKa [24]

Answer:

$x=\sqrt{21}$

$y=\sqrt{21}$

Step-by-step explanation:

Let x and y are the two positive real numbers

product of two numbers is 21

$x y=21$

$y=\frac{21}{x}$

The sum of the two numbers is f(x) =x+y

Replace y with 21/x

$f(x) =x+\frac{21}{x}$

we need to find smallest possible sum , so we take derivative using power rule

$f'(x)= 1-\frac{21}{x^2}$

when sum is minimum then the derivative is equal to 0

$0= 1-\frac{21}{x^2}$

$0=\frac{x^2-21}{x^2}$

multiply both sides by x^2

$x^2-21=0$

$x^2=21$

Take square root on both sides

$x=\sqrt{21}$

$y=\frac{21}{x}$

$y=\frac{21}{\sqrt{21}}$

$y=\sqrt{21}$

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4 years ago

The bill with the greatest value ever printed in the United States was worth 10 to the 5th power dollars which of the following

Stella [2.4K]

Answer: 50,000

Step-by-step explanation:

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3 years ago

Can someone explain this??

vladimir2022 [97]

Answer:mark me a brainiest pls

that is a linear function search it up on Google youl get the answer from there

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3 years ago

Ava opened a account first oak with 5000$. Zoe started an account with 4000$ l. No additional deposit or withdrawal from this ac

DerKrebs [107]

Answer:

This isnt much of an answer just something to help-

Try doing A(1 + B)^I

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