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d1i1m1o1n [39]
3 years ago
5

The Kendal Company manufactures automobile engine parts. Running the manufacturing operations requires 12 watts (units of electr

icity per hour). The amount of electricity required to run the manufacturing operations and lighting the facility is given by y = 12x + 24, where x is the number of hours of manufacturing and y is the amount of electricity expended. How much electricity is used on a day when no parts are manufactured? (x 0, y 0)
Mathematics
1 answer:
bazaltina [42]3 years ago
6 0
No parts are manufactures is when x=0 because it is run 0 hours

y=amount of elctricity needed
y=12(0)+24
y=0+24
y=24

24 watts are used on a day when no parts are manufactured
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Read 2 more answers
✓<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B19%20%2B%20%20%5Csqrt%7B30%20%2B%20%20%5Csqrt%7B32%20%2B%20x%20%20%7D%20%7D%
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We'll have to repeatedly square both sides of the equation, in order to get rid of the square roots. Squaring a first time yields

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And square again:

30+\sqrt{32+x}=36 \iff \sqrt{32+x}=6

Square one last time:

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Let's check the solutions: all these squaring might have created external solutions:

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