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melisa1 [442]
3 years ago
13

B) A rule of thumb used by nutritionists is that to lose 1 lb of body fat, you need to burn 3,500 calories above what you take i

n. If you burn 400 more calories than you take in each day, how long will it take to lose 1 lb? What about 5 lbs?
Mathematics
1 answer:
Sergio [31]3 years ago
3 0
That’s a hard question I’ll have to work on it
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Will an exponential function always, never, or sometimes exceed a polynomial function?
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3 years ago
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2x2 – 9x + 2 = –1
Reika [66]

Answer:

C)  The discriminant is greater than 0, so there are two real roots

Step-by-step explanation:

<u>Discriminant</u>

b^2-4ac\quad\textsf{when}\:ax^2+bx+c=0

\textsf{when }\:b^2-4ac > 0 \implies \textsf{two real roots}

\textsf{when }\:b^2-4ac=0 \implies \textsf{one real root}

\textsf{when }\:b^2-4ac < 0 \implies \textsf{no real roots}

2x^2-9x+2=-1

\implies 2x^2-9x+3=0

\implies a=2, b=-9, c=3

\begin{aligned}b^2-4ac &=(-9)^2-4(2)(3)\\& =81-24\\&=57 > 0\implies \textsf{two real roots}\end{aligned}

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2 years ago
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3 0
2 years ago
√131 is between 11 and 12? true or false
guajiro [1.7K]
True
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3 years ago
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Suppose a house costs $270,000 appreciates by 5% each year. In about how many years will the house be worth $350000?
Vikki [24]
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7 0
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