Identify the point from the equation y + 5 = 3 (x

To the nearest tenth of a cent, find the cost per ounce of a 15 oz. box of cereal costing $2.49.

Molodets [167]

Answer: $2.50

for rounding to the tenths, look at the hundredths place and if it is more than 5 round up :)

6 0

3 years ago

4. What is the solution to r/-3 = 12?

Elena-2011 [213]

Es c porque lo divides

4 0

1 year ago

Read 2 more answers

Factor completely: 12a^2b–18ab^2–30ab^3

Goryan [66]

Answer:

6ab(2a-3b-5b²)

Step-by-step explanation:

6(2a²b-3ab²-5ab³)

6a(2ab-3b²-5b³)

6ab(2a-3b-5b²)

7 0

2 years ago

true or false If x represents a random variable with mean 114 and standard deviation 40, then the standard deviation of the samp

Goshia [24]

Answer:

$\mu = 114, \sigma = 40$

We also know that we select a sample size of n =100 and on this case since the sample size is higher than 30 we can apply the central limit theorem and the distribution for the sample mean would be given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard deviation for the sampling distribution would be:

$\sigma_{\bar X}= \frac{40}{\sqrt{100}}= 4$

So then the answer is TRUE

Step-by-step explanation:

Let X the random variable of interest and we know that the true mean and deviation for this case are given by:

$\mu = 114, \sigma = 40$

We also know that we select a sample size of n =100 and on this case since the sample size is higher than 30 we can apply the central limit theorem and the distribution for the sample mean would be given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard deviation for the sampling distribution would be:

$\sigma_{\bar X}= \frac{40}{\sqrt{100}}= 4$

So then the answer is TRUE

6 0

2 years ago

If A = {1, 2, 3} the number of non-empty proper subsets are

Ksenya-84 [330]

Answer:

The number of non empty proper subsets of a set with 3 elements is =23−2=8−2=6.

4 0

3 years ago

Identify the point from the equation y + 5 = 3 (x - 2)