3 years ago

HELP asap please!!Johanna started a new part-time job. Her paycheck is a function of the numbers of hours she

Mathematics

1 answer:

BaLLatris [955]3 years ago

4 0

Answer:8.25x - 5. She must work at least 10 hours but no more than

Step-by-step explanation:

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Semi perimeter:-

$\\ \rm\rightarrowtail s=\dfrac{a+b+c}{2}$

$\\ \rm\rightarrowtail s=\dfrac{1.8+2.4+3}{2}$

$\\ \rm\rightarrowtail s=\dfrac{7.2}{2}=3.6cm$

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$\\ \rm\rightarrowtail \sqrt{3.6(3.6-1.8)(3.6-3)(3.6-2.4)}$

$\\ \rm\rightarrowtail \sqrt{3.6(1.8)(0.6)(1.2)}$

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