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frez [133]
3 years ago
11

Given f(x)=x^3+2x+k. and x+1 is a factor of f(x), then what is the value of k?

Mathematics
1 answer:
Ludmilka [50]3 years ago
4 0

Answer:

k = 3.

Step-by-step explanation:

By the Factor Theorem. if x+a is a factor of f(x)  then f(-a) = 0.

Here we use f(-1):

f(-1) = (-1)^3 + 2(-1) + k = 0

-1 - 2 + k = 0

k = 3.

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Obi's age is twice oba's age 4 years ago obi was three times as old as oba. find their ages​
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Obi's age is 18 and Oba's age is 9

Step-by-step explanation:

Let Obi's age be x and Oba's age be y

<u><em>Condition 1:</em></u>

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<u><em>Condition 2:</em></u>

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8 0
3 years ago
Read 2 more answers
Linda is going to rent a truck for one day. There are two companies she can choose from, and they have the following prices.
MA_775_DIABLO [31]

Answer: as company A charges a fix amount $93 for any distance and company B charges variable amount starting from $65.there will be a certain mileage after that the amount charged by company B should be greater than company A.

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charge for company B for m mileage= $65 + $0.70*m

 

so,

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Step-by-step explanation:

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jenyasd209 [6]

Answer:

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Hope that helps!

8 0
3 years ago
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