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Ray Of Light [21]
3 years ago
10

11. Describe and correct the error in evaluating the expression. –21-7)= -14

Mathematics
1 answer:
likoan [24]3 years ago
8 0

Answer: -28

Step-by-step explanation:

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Assume the readings on thermometers are normally distributed with a mean of 0degreesC and a standard deviation of 1.00degreesC.
Nat2105 [25]

Answer:

P(-2.05

And we can find this probability with this difference

P(-2.05

And we can see the figure in the plot attached.

Step-by-step explanation:

Let X the random variable that represent the redings on thermometers of a population, and for this case we know the distribution for X is given by:

X \sim N(0,1)  

Where \mu=0 and \sigma=1

We are interested on this probability

P(-2.05

We can use the z score formula given by:

z=\frac{x-\mu}{\sigma}

Using this formula we got:

P(-2.05

And we can find this probability with this difference

P(-2.05

And we can see the figure in the plot attached.

5 0
4 years ago
A box has dimensions of 15 inches long, 3.1 feet wide, and 7 inches high. What is the volume of the box? The formula for the vol
riadik2000 [5.3K]

The answer choices are in cubic inches, so convert the dimension that is given as feet into inches.

1 foot = 12 inches, so multiply 3.1 feet by 12:

3.1 x 12 = 37.2 inches.


Now multiply the three dimensions to find the volume:

15 x 37.2 x 7 = 3,906 in^3

5 0
4 years ago
Read 2 more answers
Find the slope of the line that passes through (4,2) and (4,5)
Hunter-Best [27]

Answer: Undefined

Step-by-step explanation:

(slope = m)

m=\frac{y_2-y_1}{x_2-x_1}=\frac{5-2}{4-4}=\frac{3}{0}

(3 divided by 0 is undefined, so the slope is undefined)

4 0
3 years ago
Determine the complement of 55.6%
Helen [10]
The answer is 44.4 hope that helps
5 0
3 years ago
I know this question is easy, but I don’t really know how to do it? Help? If possible put a quick explanation, it’s fine if not!
lorasvet [3.4K]

Answer:

She left $10.62 the total was $58.87

Hope this helps :)

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3 years ago
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