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Korvikt [17]
3 years ago
5

14 in

Mathematics
2 answers:
Alecsey [184]3 years ago
7 0

Answer:

\boxed{area = 21in^{2} }

Step-by-step explanation:

area =  \frac{1}{2} bh =  \frac{1}{2} (14)(3) =  7\times 3 \\  {area }= 21in^{2}

shtirl [24]3 years ago
3 0

Answer:

so, Area of the given triangle is 21

{in}^{2}

Step-by-step explanation:

Area of a triangle =

\frac{1}{2}  \times base \times height

=》

\frac{1}{2}  \times 14 \times 3

=》

7 \times 3

=》

21

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Paraphin [41]

Step-by-step explanation:

the mean value is the sum of all values divided by how many values there are.

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(3 + -5 + 70 + -90 + -13) / 5 = -35/5 = -7

-7° F is the mean temperature of the 5 cities.

3 0
3 years ago
A student was assigned to read a book over 5 days. On the first day, she read 25 pages. On the second day she read 45 pages, on
nignag [31]

Answer:

Hint : They are a all common factors of 5

Step-by-step explanation:

You divide each of them by 5 then add them all together then you will get your answer.

Good luck!

7 0
3 years ago
A multiple choice test has four possible answers for each question. Let X be the number of correct responses in a test of 100 qu
dimulka [17.4K]

Answer:

a. 4.33.

Step-by-step explanation:

If there is only one correct answer out of four alternatives, the expected proportion of correct answers is p =0.25

Sample size (n) = 100 questions

The standard deviation of a proportion 'p' is given by:

s=\sqrt{\frac{p*(1-p)}{n} }

Applying the given data:

s=\sqrt{\frac{0.25*(1-0.25)}{100}}\\s=0.0433

If X is the number of correct responses in 100 guesses, the standard deviation of X is:

\sigma = n*s=100*0.0433\\\sigma = 4.33

The standard deviation of X is 4.33 questions.

7 0
3 years ago
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vova2212 [387]
It would be the last one, to inform readers about a topic using facts and details.
4 0
3 years ago
Qual é a raiz quadrada de 841?
olga_2 [115]

Answer:

29

Step-by-step explanation:

Convert 189 To A Decimal And Then Round Your Answer To The Nearest Whole Number (29) Is Already Rounded To The Nearest Whole Number So Your Answer Is 29

6 0
3 years ago
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