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Zarrin [17]
3 years ago
14

If (x + 2 ) is a factor of x3 − 6x2 + kx + 10, k =

Mathematics
2 answers:
BartSMP [9]3 years ago
8 0
If a binomial x-a is a factor of a polynomial p(x), then p(a)=0.

x+2 is a factor of p(x)=x³-6x²+kx+10, so p(-2)=0.

p(-2)=0 \\
(-2)^3 - 6 \times (-2)^2 + k \times (-2) + 10=0 \\
-8-6 \times 4-2k+10=0 \\
-8-24-2k+10=0 \\
-2k-22=0 \\
-2k=22 \\
k=\frac{22}{-2} \\
\boxed{k=-11}
Gwar [14]3 years ago
4 0

Answer:

-11

Step-by-step explanation:

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S_A_V [24]

Answer:

15%

Step-by-step explanation:

900/6000

which is the same as 900÷6000

900÷6000= 0.15

0.15 as a percent in 15%

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2 years ago
#15: A shipment to a warehouse consists of 2,000 watchbands. The
Ad libitum [116K]

2 out of 50 are defective.

Divide 2 by 50: 2/50 = 0.04

Now multiply the total quantity by that:

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3 years ago
A
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Answer: (7 + d) 4 and 4 (7 + d)

Step-by-step explanation:

<em>4 (d + 7) = 4d + 28</em>

<em />

(7 + d) 4 = 28 + 4d (flipped version of 4d + 28)

4 (7 + d) = 28 + 4d (the same)

8 0
3 years ago
What's the square root of 6.909877
Vesna [10]
The answer is square root of 6.909877
I hope you like this answer, please Brainliest me, and have a good day! :D
7 0
3 years ago
Read 2 more answers
40•(420:x-37)=200 помогите решить уравнение
miv72 [106K]
40•(420:x-37)=200 <span>означает 40(\frac{420}{x}-37)=200
</span>
<span>разделите обе стороны на 40
</span><span>
\frac{420}{x}-37=5
</span>
<span>добавить 37 с обеих сторон

\frac{420}{x}=42
</span>
<span>умножить обе стороны на х
420=42x

</span><span>разделите обе стороны на 42
10=x
x=10
</span>
4 0
3 years ago
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