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3 years ago

Which number is greater: 87 or 13.688?how do you know?

2 answers:

7 0

When comparing two numbers, you usually start by comparing the numbers on the left of the decimal point, if you find one of them greater than the other, then you've got your answer ready. If the numbers on the left of the point are equal, then you start comparing the decimal part.

In the two numbers given, we have 87 and 13.688. We start by comparing the numbers before the point, we will find that these numbers are 87 and 13.
Comparing these two, we can see that 87 is greater than 13.

Therefore: 87 is greater than 13.688

kirill115 [55]3 years ago

4 0

Answer:

Step-by-step explanation:

The answer is 87 because 87 is greater than 13

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Find and interpret a 95% confidence interval to estimate the average number of bolts per box for all boxes in the population. Ro

gayaneshka [121]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The 95% confidence interval is $49.85 < \mu < 54.15$

This means that there is 95% chance that the true population mean is within this interval

Step-by-step explanation:

From the question we are told that

The sample size is n = 30

The sample mean is $\= x = 52$

The population standard deviation is $\sigma = 6$

Given that the confidence level is 95% then the level of confidence is evaluate as

$\alpha = 100 - 95$

$\alpha = 5\%$

$\alpha = 0.05$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table , the values is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

substituting values

$E = 1.96 * \frac{ 6 }{\sqrt{30} }$

$E = 2.147$

The 95% confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

substituting values

$52 - 2.147 < \mu < 52 + 2.147$

$49.85 < \mu < 54.15$

4 0

4 years ago

Bernice sells 135 sea shells by the sea shore every day. She shells each sea shel for 3 dollars. For how many days does Bernice

horrorfan [7]

First we want to calculate exactly how much money Bernice sells on a daily basis, so we can determine how many days it'll take to earn 2,430 dollars. We can do this by multiplying the amount of shells she sells every day by the amount she sells them for. So 135 sea shells multiplied by 3 dollars.

135 * 3

This comes up to 405 dollars every day, quite a significant amount considering she's selling shells. Now, divide 2,430 dollars by 405 dollars. This will give us the final result.

2,430 / 405

It will take Bernice exactly 6 days to earn 2,430 dollars.

4 0

3 years ago

PLEASE HELPPPPPPP What is the approximate area of the shaded region?

KATRIN_1 [288]

Answer:

69.53

Step-by-step explanation:

I did it on my calculator.

3 0

2 years ago

Which are the roots of x^2-4x+4=20

Marysya12 [62]

X2+-4x+4=20 the final answer is 20!

3 0

4 years ago

What do I type in the yellow boxes?

MA_775_DIABLO [31]

Answer:

the first yellow box would be -14

the second one would be 2

the last one would be -7!

hope this helped!

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers