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3 years ago

If f (x) = StartRoot x minus 3 EndRoot, which inequality can be used to find the domain of f(x)?

Mathematics

2 answers:

Maurinko [17]3 years ago

5 0

Answer:

$x - 3 \geqslant 0$

Step-by-step explanation:

The given square root function is

$f(x) = \sqrt{x - 3}$

The domain refers to all values of x that will make this square root function defined.

We know that negative values will not be defined for the square root function therefore the expression under the root should be greater or equal to zero.

Hence the inequality that can be used to find the domain of f(x) is

$x - 3 \geqslant 0$

luda_lava [24]3 years ago

4 0

Answer:B on edge

Step-by-step explanation: no cap

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3 years ago

A survey of 70 students from a high school is conducted. From this sample, it is found that 58 students have sent a text message

Irina-Kira [14]

Number of students who have sent a text message only is given by the difference between those that have sent a text message and those that have done both.
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3 years ago

In a recent study, volunteers who had 8 hours of sleep were three times more likely to answer questions correctly on a math tes

Shalnov [3]

Answer:

Step-by-step explanation:

Sleep Deprivation

In a recent study, volunteers who had 8 hours of sleep were three times more likely to answer correctly on a math test than were sleep-deprived participants.

(a) Identify the sample used in the study.

(b) What is the sample's population?

(d) Make an inference based on the results of the study?

Solution

A. The samples used is the hours of sleep and math test scores of the volunteers

B. The samples population is hours of sleep and math test scores of people in general

C. The part of the study that represent the descriptive branch of statistics is "three times more likely"

D.Inference: To perform well in a math test, a person should get at least 8 hours of sleep the night before.

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