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4 years ago

5

On a certain day the temperature changed a rate of -3 degrees Fahrenheit per hour how long did it take for the temperature to ch

ange to -33 degrees Fahrenheit

1 answer:

swat324 years ago

6 0

Answer: is 11 hours.

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Helppppppp mathhhhhhhh

mestny [16]

This is calculator work. Type in 0.8 inverse tangent and find 38.6598, which, rounded, matches answer D.

6 0

3 years ago

To estimate the mean score μ of those who took the Medical College Admission Test on your campus, you will obtain the scores of

pychu [463]

Answer:

Step-by-step explanation:

Let X be the SRS scores of students.

Given that X is normal with standard deviation about 6.5.

Mean difference = $|bar x-\mu|$ is desired

i.e. Z score should be $|z|$

Std error = std deviation of sample = 0.447

b) $z =2.95\\\frac{1.3}{s} =2.95\\s = 0.447\\6.5/\sqrt{n} =0.447\\n >193$

So std error must be 0.997 and sample size must be atleast 193 to get the difference of x bar and mu to lie within 1.3 points in either direction

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3 years ago

The following six independent length measurements were made (in feet) for a line: 736.352, 736.363, 736.375, 736.324, 736.358, a

horrorfan [7]

Answer:

Assuming population data

$\sigma = \sqrt{0.000354}=0.0188$

Assuming sample data

$s = \sqrt{0.000425}=0.0206$

Step-by-step explanation:

For this case we have the following data given:

736.352, 736.363, 736.375, 736.324, 736.358, and 736.383.

The first step in order to calculate the standard deviation is calculate the mean.

Assuming population data

$\mu = \frac{\sum_{i=1}^6 X_i}{6}$

The value for the mean would be:

$\mu = \frac{736.352+736.363+736.375+736.324+736.358+736.383}{6}=736.359$

And the population variance would be given by:

$\sigma^2 = \frac{\sum_{i=1}^6 (x_i-\bar x)}{6}$

And we got $\sigma^2 =0.000354$

And the deviation would be just the square root of the variance:

$\sigma = \sqrt{0.000354}=0.0188$

Assuming sample data

$\bar X = \frac{\sum_{i=1}^6 X_i}{6}$

The value for the mean would be:

$\bar X = \frac{736.352+736.363+736.375+736.324+736.358+736.383}{6}=736.359$

And the population variance would be given by:

$s^2 = \frac{\sum_{i=1}^6 (x_i-\bar x)}{6-1}$

And we got $s^2 =0.000425$

And the deviation would be just the square root of the variance:

$s = \sqrt{0.000425}=0.0206$

6 0

3 years ago

Find the height of this cone using the Pythagorean Theorem. 8 cm h = [?] cm 8 cm Enter

Nataliya [291]

Answer:

Step-by-step explanation:

6 0

3 years ago

Darling ohayo!! <br><br><br><br><br><br> AAAAAAAAAAAH

Crank

umm...... ok

free points ig

3 0

3 years ago

Read 2 more answers