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2 years ago

X^2 - 16 = 0 by extracting the square root

Mathematics

1 answer:

scoray [572]2 years ago

6 0

Answer:

{-4, 4}

Step-by-step explanation:

x² - 16 = 0
x² = 16
x = √16
x = ± 4

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Answer:

The ODDS that the dart hits a date that is a prime number are 1:1

Step-by-step explanation:

Odds:

An odd is writen as:

Number of desired outcomes: Number of undesired outcomes.

In this question:

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So the odds are:

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3 years ago

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Answer:

4.05% probability that a randomly selected adult has an IQ greater than 123.4.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

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In this question, we have that:

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This is 1 subtracted by the pvalue of Z when X = 123.4. So

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3 years ago

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Answer:

Step-by-step explanation:

.........................

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2 years ago

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3 years ago

X^2 - 16 = 0 by extracting the square root​

X^2 - 16 = 0 by extracting the square root