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3 years ago

What is the domain of f(x) = 1992(x + 3) + 2?

Mathematics

1 answer:

emmasim [6.3K]3 years ago

5 0

Answer:

Domain is: x = -3.001

Step-by-step explanation:

First things first, to find the domain of any line you should graph it. Usually with questions like this you are usually asked to find the domain and the range, but that's not the case here.

I will attach a picture of the graph below.

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Step-by-step explanation:

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2 years ago

a nationwide study of american homeowners revealed that 65% own at least one lawn mower. a lawn equipment manufacturer, locate

svetoff [14.1K]

Answer:

$z=\frac{0.6841 -0.65}{\sqrt{\frac{0.65(1-0.65)}{497}}}=1.5938$

We have a right tailed test then the p value would be:

$p_v =P(z>1.5938)=0.0555$

Step-by-step explanation:

Information provided

n=497 represent the random sample of homes selected

X=340 represent the number of homes with one or more lawn

$\hat p=\frac{340}{497}=0.6841$ estimated proportion of homes with one or more lawn

$p_o=0.65$ is the value that we want to test

z would represent the statistic

$p_v$ represent the p value (variable of interest)

System of hypothesis

We want to check if proportion of homeowners owning lawn mowers in charlotte is higher than 65%m so then the correct hypothesis are .:

Null hypothesis: $p\leq 0.65$

Alternative hypothesis: $p > 0.65$

The statistic is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing the info given we got:

$z=\frac{0.6841 -0.65}{\sqrt{\frac{0.65(1-0.65)}{497}}}=1.5938$

We have a right tailed test then the p value would be:

$p_v =P(z>1.5938)=0.0555$

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3 years ago

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Answer:

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3 years ago

the temperature dropped 2°F every hour for 6 hours. What was the total number of degrees the temperature changed in the 6 hours?

Assoli18 [71]

Answer:

-12 °F

Step-by-step explanation:

To find the total change in temperature, multiply 6 by -2, since it dropped 2 degrees each hour for 6 hours.

6(-2)

= -12

This means -12°F was the total number of degrees the temperature dropped.

4 0

3 years ago

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What is the domain of f(x) = 1992(x + 3) + 2?​

What is the domain of f(x) = 1992(x + 3) + 2?