2 years ago

HELP ME PLEASE I DON’T UNDERSTAND give answers and working please

Mathematics

1 answer:

AnnZ [28]2 years ago

5 0

Calculate the circumference and area of a circle.

To find the circumference, you double the radius and multiply by pi. To find the area, you square the radius and multiply by pi.

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Let f(x)= x^2-4x-c. Find a nonzero value of c such that f(c)=c.

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The nonzero value of c will be:

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Step-by-step explanation:

Given the function

$f\left(x\right)=\:x^2-4x-c$

$f\left(c\right)=\:c^2-4c-c$

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switching the sides

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subtract c from both sides

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Using the zero factor principle

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$c=0\quad \mathrm{or}\quad \:c-6=0$

so, the solutions to the quadratic equations are:

$c=0,\:c=6$

Therefore, a nonzero value of c will be:

$c = 6$

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