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arsen [322]
2 years ago
8

Emma needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 5

hours and charged her $168 for parts. The total was $743. What was the cost of labor, per hour?
Mathematics
1 answer:
nika2105 [10]2 years ago
6 0

Answer:

115

Step-by-step explanation: trust me twin

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Given 5n² + 6n + 7 = n² - 4n : a. Find the value of the discriminant. b. State the number and type of roots/solutions/zeros.[2 r
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\bf 5n^2+6n+7=n^2-4n\implies 5n^2+6n+7-n^2+4n=0
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\begin{array}{llccll}
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discriminant\implies b^2-4ac=
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0&\textit{one solution}\\
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negative&\textit{no solution}
\end{cases}

if you get a positive value, that means 2 real solutions
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3 years ago
Sheeesh help me out and say hi​
Rainbow [258]

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Step-by-step explanation:

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A migraine sufferer took Two 400mg doses of naproxen. The half-life for
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Answer:

If y(t) is the mass (in mg) remaining after t years, then y(t) = y(0) (0.5)^{t/T} = 400 (0.5)^{t /4}, where T is the half-life period and y(0) is the amount at t = 0 years (initial).

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Step-by-step explanation:

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