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butalik [34]
3 years ago
13

Solve each question for x. xe^-x+7e^-x=0

Mathematics
1 answer:
murzikaleks [220]3 years ago
7 0

Answer:

x=-7

Step-by-step explanation:

xe^-x+7e^-x=0

factor out the e^-x

e^-x(x+7)=0

e^-x=0, x+7=0

-x=ln(0), x=0-7=-7,

since ln(0) is undefined,

the only solution is -7.

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A container full of water weighs 15.5 lbs. When ¼ of the water is poured out, the container now weighs 12 ½ lbs. How much does t
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Answer:

3.5 lbs.

Step-by-step explanation:

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If f(x)= 5x + 4 and g(x) = 1/2x<br><br> find ,<br> a) fg(5)
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Answer:

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Step-by-step explanation:

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3 years ago
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ΔMNP is an isosceles triangle with MN ≈NP. If ∠ M = 3x + 1 and ∠ N = x - 11. What is the measure of ∠P?
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Start with an equation summing all the angles in this triangle:

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