3 years ago

Find the value of x such that the data set has the given mean.

Mathematics

1 answer:

sineoko [7]3 years ago

6 0

Answer:

127

Step-by-step explanation:

112 × 6 = 672

100 + 121 + 105 + 111 + 108 = 545

672 - 545 = 127

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3 years ago

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

defon

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

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.

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

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3 years ago