3 years ago

How many real solutions does x to the power of 2 + 8x + 20 = 0 have?

Mathematics

1 answer:

kenny6666 [7]3 years ago

5 0

Answer:

Step-by-step explanation:

solve using quadratics and the answer is undefined

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How many times larger is 3×108 than 3×102?

Vinvika [58]

Answer: 120

Step-by-step explanation:

3 x 108 = 324

3 x 102 = 204

so 324 - 204 = 120

4 0

3 years ago

Is 50.2 a rational or an irrational number, why?

Greeley [361]

Answer:

Rational.

Step-by-step explanation:

$\textbf{A rational number is a real number that can be expressed as}~ \dfrac{p}{q},\\\\\textbf{where}~ p~ \textbf{and}~ q~ \textbf{are integers.}\\\\ \boxed{50.2 = \dfrac{502}{10}}\\\\ \textbf{50.2 can be expressed as a ratio of two integers,}~ \textbf{so it is a rational number.}$