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Veseljchak [2.6K]
3 years ago
8

2. Kono conducted a survey of people 13 to 19 years of age and found that 23% listed their favorite activity as some sort of spo

rt. There are 5,260 people in
this age group in Komo's city. How many of them should Komo predict would list a sport as their favorite activity?
Need a Hin
A. 120,980
B. 1,210
C.229
D.2287
Mathematics
2 answers:
Andru [333]3 years ago
8 0

Answer:

Step-by-step explanation:

the answer is 1,210

Yanka [14]3 years ago
5 0

Answer:

9l

Step-by-step explanation:

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Trigonometric Identities and Applications? help
Vadim26 [7]
\bf h=-15cos\left( \frac{2\pi }{5}t \right)\qquad \boxed{h=8}\qquad 8=-15cos\left( \frac{2\pi }{5}t \right)
\\\\\\
\cfrac{8}{-15}=cos\left( \frac{2\pi }{5}t \right)\implies cos^{-1}\left(  \frac{8}{-15}\right)=cos^{-1}\left[ cos\left( \frac{2\pi }{5}t \right) \right]
\\\\\\
cos^{-1}\left(  \frac{8}{-15}\right)=\cfrac{2\pi }{5}t\implies \cfrac{5}{2\pi }\cdot  cos^{-1}\left(  \frac{8}{-15}\right)=t\\\\
-------------------------------

\bf cos^{-1}\left(  \frac{8}{-15}\right)=\stackrel{radians}{\stackrel{II~quadrant}{\approx 2.13}~~,~~\stackrel{III~quadrant}{\approx 4.15}}\qquad \qquad 
t=
\begin{cases}
\frac{5}{2\pi }\cdot 2.13\\\\
\frac{5}{2\pi }\cdot 4.15
\end{cases}
3 0
3 years ago
Find the length of the missing side
faltersainse [42]

Answer:

c = 17

Step-by-step explanation:

Since this is a right angle triangle we can use the Pythagoras theorem that states that c^{2} = a^{2} + b^{2} (where c is the Solve for  hypotenuse and "a" and "b" are the legs of the right angle triangle). From here we know that the answer to this question is....

c^{2} = a^{2} + b^{2}\\c^{2} = 15^{2} + 8^{2} \\c^{2} = 225 + 64\\c^{2} = 289\\c = \sqrt{289} \\c = 17

6 0
3 years ago
Involving the selection of frozen dinners. Assume that there are 15 frozen dinners: 7 pasta, 6 chicken, and 2 seafood dinners. T
zzz [600]

The probability that at least 2 of the dinners selected are pasta dinners will be 0.8181...

<u><em>Explanation</em></u>

Pasta dinners = 7 , Chicken dinners = 6 and Seafood dinners = 2  

The student selects 5 of the total 15 dinners. So, total possible ways for selecting 5 dinners =^1^5C_{5} =3003

For selecting at least 2 of them as pasta dinners, the student can select 2, 3, 4 and 5 pasta dinners from total 7 pasta dinners.

So, the possible ways for selecting 2 pasta dinners =^7C_{2}*^8C_{3} =1176

The possible ways for selecting 3 pasta dinners =^7C_{3}*^8C_{2} =980

The possible ways for selecting 4 pasta dinners =^7C_{4}*^8C_{1} =280

The possible ways for selecting 5 pasta dinners =^7C_{5}*^8C_{0} =21

Thus, the probability for selecting at least 2 pasta dinners =\frac{1176+980+280+21}{3003} =\frac{2457}{3003} =0.8181.....

3 0
4 years ago
17. Which of the following measures can be calculated for qualitative data? a. Mean b. Median c. Mode d. All of these
VLD [36.1K]

Answer: C. Mode

Step-by-step explanation:

Qualitative data applies to observable data such as reoccurring patterns (mode)

Quantitative data applies to numbers and numerical calculations (Mean, Median)

6 0
3 years ago
Two jugs and 4 bottles hold 40 ounces. One jug and 3 bottles hold 25 ounces. How many ounces does 1 jug hold?
Bad White [126]

Answer:

5 ounces

Step-by-step explanation:

Let the capacity of jug be j, bottle be b

2j + 4b = 40 \\ j + 3b = 25 \\ j = 25 - 3b \\  \\ therefore \: 50 - 6b + 4b = 40 \\ 2b = 10 \\ b = 5

6 0
3 years ago
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