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madam [21]
3 years ago
8

Given f(x)=x^3+kx-4, and x-1 is a factor of f(x), then what is the value of k?

Mathematics
1 answer:
Darina [25.2K]3 years ago
3 0

Answer:

3

Step-by-step explanation:

If x-1 is a factor, then x=1 is a solution. So:

0=1³+1k-4

1k=3

k=3 .........

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Solve for x. 11x+4< 15 OR 12x–7>-25
PtichkaEL [24]
This is what I got as my answer! Hope it helps!

5 0
3 years ago
May I get help with this thanks
nika2105 [10]
Take one of the 'x's in the table.
Write it in place of 'x' in one of the choices.
See if it produces the 'y' in the same choice.
It will only do that in one of the choices.

This is exactly how you check your solution to an equation
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6 0
3 years ago
here a subtraction problem that has been solved incorrectly for 44-16=28 choose the addition sentence that check this subtractio
Mazyrski [523]

Answer:

28+16=44

Step-by-step explanation:

point of correction it has been solved correctly

when subtracting 44 - 16 it gives you 28

=> 44 - 16

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you will minus 28 from one of the numbers before the equal sign

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4 0
2 years ago
Type the correct answer in the box use nummerals instead of words. if necessary use / for the faction bar
zzz [600]

Answer: f(y) x g(y) = 1

Step-by-step explanation:

\frac{2y^3-y^2+2y-1}{y^3-y^2+y-1}\cdot \frac{2y^2-3y+1}{4y^2-4y+1}\\\\= \frac{4y^5-8y^4+9y^3-9y^2+5y-1}{4y^5-8y^4+9y^3-9y^2+5y-1} \\\\= \frac{(y-1)(2y-1)(2y-1)(y^2+1)}{(y-1)(2y-1)(2y-1)(y^2+1)} \\\\= 1

3 0
2 years ago
What’s the median of the data 24,2,13,12,2,5,10,18
nataly862011 [7]

Answer:

11

Step-by-step explanation:

arrange from smallest to greatest:

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The median is the middle name.

If you have two middles, the median is the average of them.

So you have 2 middles, 10 and 12.

The average of 10 and 12 is given by (10+12)/2=11

8 0
3 years ago
Read 2 more answers
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