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frez [133]
2 years ago
9

How many real roots and how many complex roots does this expression have? (x+7)^7

Mathematics
1 answer:
Feliz [49]2 years ago
3 0

Answer:

One real root, with multiplicity 7.

Step-by-step explanation:

The given expresion is

{(x + 7)}^{7}

This is a seventh degree polynomial.

According to the fundamental theorem of Algebra, the expression has a potential 7 roots both real and complex.

This expression has one real root, with multiplicity , 7.

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Pip and Sara win some money and share it in ratio 5:4 pip gets £50 how much did they get all together
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Answer: £90

Step-by-step explanation:

Pip and Sara get some money. They share it in the ratio 5 : 4.

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Use direct proportion:

5  :  4

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Together they got:

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2 years ago
Changing Bases to Evaluate Logarithms in Exercise, use the change-of-base formula and a calculator to evaluate the logarithm. Se
sesenic [268]

Answer:

Log_5 12=1.54

Step-by-step explanation:

We are given that

Log_5 12

We have to find the value of given logarithms by using change-base formula

Base-change formula:

log_a b=\frac{Log_x b}{Log_x a}

Where x=New base

Using the formula then, we get

Log_5 12=\frac{log_{10} 12}{log_{10} 5}

Substitute the values log_{10}12=1.079, log_{10}5=0.699

Then,we get

Log_5 12=\frac{1.079}{0.699}

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Step-by-step explanation:

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