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3 years ago

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What are the domain and range of h(x) = 3|x|? A. domain: all real numbers; range: y ≤ 0 B. domain: x ≥ 0; range: all real number

s C. domain: x ≤ 0; range: all real numbers D. domain: all real numbers; range: y ≥ 0
Help! plss

1 answer:

frozen [14]3 years ago

6 0

Answer:

D

Step-by-step explanation:

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how many meters are equal to 5,253 centimeters? use how the placement of the decimal point changes when dividing by power of 10

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Answer:

$52.53\ \text{meters}$

Step-by-step explanation:

$1\ \text{meter}=100\ \text{centimeter}$

$1\ \text{centimeter}=\dfrac{1}{100}\ \text{meter}$

In the question the quantity that is required to be converted to meters is 5253 centimeters.

$5253\ \text{cm}=5253\times \dfrac{1}{100}\\ =52.53\ \text{meters}$

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<h2><u>Answer with explanation:</u></h2>

The confidence interval for population mean (when population standard deviation is unknown) is given by :-

$\overline{x}-t^*\dfrac{s}{\sqrt{n}}< \mu$

, where n= sample size

$\overline{x}$ = Sample mean

s= sample size

t* = Critical value.

Given : n= 25

Degree of freedom : $df=n-1=24$

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Using t-distribution table ,

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$t^*=t_{\alpha/2,\ df}=t_{0.01,\ 24}=2.4922$

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Then, the 95% confidence interval would be :-

$93.36-(2.4922)\dfrac{19.95}{\sqrt{25}}< \mu$

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Step-by-step explanation:

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Answer:

r = $2\sqrt{5}$

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Is this a live test question or a homework question?

Step-by-step explanation:

the radius is the distance between (3, 2) and (5, -2)

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