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3 years ago

Which function has a domain of x = -5?

Mathematics

1 answer:

Lemur [1.5K]3 years ago

3 0

I believe the answer is H but I’m not 100% sure if I’m wrong somebody please correct me

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At the pet store they were 4 puppies, 3 cats, 12 hamsters and 1 monkey waiting to be adopted. What is the value of the ratio of

Alona [7]

Answer: 4:12

Explanation:

DescriptionIn mathematics, a ratio indicates how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six.

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4 years ago

Read 2 more answers

Solve for x ………………………..

Anna71 [15]

Answer:

44 degrees

Step-by-step explanation:

Since the triangle is a SAS triangle,the two missing angles are congruent,so first subtract 92 from 180, which is 88, then divide that by 2 to get your answer.

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3 years ago

Please help meeeee! Which interval would 10 be included in?<br> O 0-10<br> O 10-20

Alexeev081 [22]

Answer:

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3 years ago

I will mark the correct answer as brainliest! A piece of fabric 180 inches long is cut in 2 pieces such that 3 times the larger

Ulleksa [173]

Let one piece be x inches long then the other piece is 180-x inches long.

3x > 4 (180-x)
3x > 720 - 4x
7x > 720

x > 103 6/7 ins

the 2 pieces could be 107 inches and 180-107 = 73 inches

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3 years ago

A professor wants to estimate the average time it takes his students to finish a computer project. Based on previous evidence, h

vova2212 [387]

Answer:

A sample size of 3 is required.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.96}{2} = 0.02$

Now, we have to find z in the Z-table as such z has a p-value of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.02 = 0.98$ , so Z = 2.054.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

Based on previous evidence, he believes that the standard deviation is approximately 3.6 hours.

This means that $\sigma = 3.6$

He would like to be 96% confident that his estimate is within 5 hours of the true population mean. Use RStudio to determine how large of a sample size is required without rounding any interim calculations.

The sample size needed is of n, and n is found when M = 5. So

$M = z\frac{\sigma}{\sqrt{n}}$

$5 = 2.054\frac{3.6}{\sqrt{n}}$