The ph scale is a measure of how __________ a solution is. what one word completes this sentence?

SAT

1 answer:

marusya05 [52]2 years ago

4 0

The pH scale is a measure of how acidic a solution is.

<h3>What is a pH scale?</h3>

The unit of measurement to determine how acidic or basic a solution is, is done via a pH scale, which ranged from 0 to 14, on which 0 to 6.9 means that the solution is acidic, and 7 is neutral.

Hence, the pH scale helps to determine the acidic amount of the solution.

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Which of the following does not represent an attribute of the function f(x) = |x|?.

zzz [600]

There are different kinds of attributes. The option that is not represent an attribute of the function f(x) = |x| is that the graph has a line of symmetry at y = 0.

Note that:

f(x) = IxI

IxI = x if x ≥ 0

IxI = -x if x ≤ 0.

<h3>Why is the statement false</h3><h3 />

The graph has a line of symmetry at y = 0." is false because the real line of symmetry is at x = 0, y = 0 is in line with the x-axis. Therefore as the graph opens up, we would not be able to have symmetry on any line parallel to the x-axis.

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2 years ago

In a multiple choice exam, there are 5 questions and 4 choices for each question (a, b, c, d). Nancy has not studied for the exa

maria [59]

Using the binomial distribution, it is found that there is a 0.6836 = 68.36% probability that she guesses at least one right.

For each question, there are only two possible outcomes, either she gets it right or she does not get it right. The probability of getting a question right is independent of any other question, hence the <em>binomial distribution</em> is used to solve this question.

<h3>What is the binomial distribution formula?</h3>

The formula is:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$