3 years ago

A clock chimes once at 1, twice at 2

Mathematics

1 answer:

shusha [124]3 years ago

7 0

Answer:

3 times at 3

Step-by-step explanation:

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Triangle A B C is reflected and then dilated to form smaller triangle A double-prime B double-prime C double-prime Which transfo

Gnoma [55]

Answer:

a reflection and a dilation

Step-by-step explanation:

in the wording, it was stated that the triangle was reflected then dilated.

6 0

3 years ago

The average weight of the entire batch of the boxes of cereal filled today was 20.5 ounces. A random sample of four boxes was se

zhenek [66]

Answer:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And replacing we got:

$s= 0.286$

And then the estimator for the standard error is given by:

$SE= \frac{0.286}{\sqrt{4}}= 0.143$

Step-by-step explanation:

For this case we have the following dataset given:

20.05, 20.56, 20.72, and 20.43

We can assume that the distribution for the sample mean is given by:

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

And the standard error for this case would be:

$SE= \frac{\sigma}{\sqrt{n}}$

And we can estimate the deviation with the sample deviation:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And replacing we got:

$s= 0.286$

And then the estimator for the standard error is given by:

$SE= \frac{0.286}{\sqrt{4}}= 0.143$

4 0

3 years ago

What is the perimeter of a swimming pool that is 97 feet in length and 17 feet wide?

Lubov Fominskaja [6]

Answer:

228 ft

Step-by-step explanation:

P = 2(l+w)

We know the length is 97 and the width 17

P = 2(97+17)

= 2(114)

=228

6 0

3 years ago

Read 2 more answers

Which is an equation for the line that contains (-1, -2) and has a slope of -5?

nexus9112 [7]

The equation would be y = -5x - 7

7 0

3 years ago

Math help please and Thank you.

Alex787 [66]

If you mean this one then:
Yes it is a perfect square, since you get a whole number as the original points
And the answer is C

4 0

4 years ago