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bixtya [17]
3 years ago
15

If 7+5i is a zero of a polynomial function of degree 5 with coefficients, then so is _.

Mathematics
1 answer:
defon3 years ago
8 0

Answer: If 7+5i is a zero of a polynomial function of degree 5 with coefficients, then so is <u>its conjugate 7-i5</u>.

Step-by-step explanation:

  • We know that when a complex number z=a+ib is a root of a polynomial with degree 'n' , then the conjugate of the complex number (\overline{z}=a-ib) is also a root of the same polynomial.

Given: 7+5i is a zero of a polynomial function of degree 5 with coefficients

Here, 7+5i is a complex number.

So, it conjugate (\overline{7+5i}=7-5i) is also a zero of a polynomial function.

Hence, if 7+5i is a zero of a polynomial function of degree 5 with coefficients, then so is <u>its conjugate 7-i5</u>.

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3.41, due to it being below .50
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3 years ago
The distance between mumbai and dubai is about 1940 km if the cruising speed of the emirates flight is 595 km/hr how long does i
inna [77]

Answer:

3.26 hours

Step-by-step explanation:

speed = distance / time

595 = 1940 / t

t = 1940 / 595  = 3.26 hours

or

6 0
3 years ago
When 4a-9b=22 and b= -2, what is the value of a? <br> A.-10/3 <br> B.-14/9 <br> C.1<br> D.4<br> E.10
ycow [4]

4a-9b=22

substitute b=-2

4a -9(-2) = 22

4a +18 =22

subtract 18 from each side

4a = 4

divide by 4

a =1

Choice C

7 0
3 years ago
Read 2 more answers
PLEASE!!!!! HELP ME!!!!!!
kati45 [8]

Answer:

15 = a_1 r^4 (1)

1 = a_1 r^5 (2)

If we divide equations (2) and (1) we got:

\frac{r^5}{r^4}= \frac{1}{15}

And then r= \frac{1}{15}

And then we can find the value a_1 and we got from equation (1)

a_1 = \frac{15}{r^4} = \frac{15}{(\frac{1}{15})^4} =759375

And then the general term for the sequence would be given by:

a_n = 759375 (\frac{1}{15})^n-1 , n=1,2,3,4,...

And the best option would be:

C) a1=759,375; an=an−1⋅(1/15)

Step-by-step explanation:

the general formula for a geometric sequence is given by:

a_n = a_1 r^{n-1}

For this case we know that a_5 = 15, a_6 = 1

Then we have the following conditions:

15 = a_1 r^4 (1)

1 = a_1 r^5 (2)

If we divide equations (2) and (1) we got:

\frac{r^5}{r^4}= \frac{1}{15}

And then r= \frac{1}{15}

And then we can find the value a_1 and we got from equation (1)

a_1 = \frac{15}{r^4} = \frac{15}{(\frac{1}{15})^4} =759375

And then the general term for the sequence would be given by:

a_n = 759375 (\frac{1}{15})^n-1 , n=1,2,3,4,...

And the best option would be:

C) a1=759,375; an=an−1⋅(1/15)

4 0
3 years ago
A car with a mass of 500 kg is accelerating at 10 m/s². What is the force being applied the car’s engine?
Naya [18.7K]

Answer:

M=500kg

a=10m/s^2

By formular:

F=ma

F=500*10

F=5000N

8 0
3 years ago
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