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4 years ago

Which is an example of structured observation?

Mathematics

2 answers:

USPshnik [31]4 years ago

6 0

It’s c!! i just did this question few days ago! hope this helped!! :))

Zarrin [17]4 years ago

6 0

Answer:

Step-by-step explanation:

After receiving an anonymous tip, a supervisor observes his staff to see if any of them are downloading music while they should be working. - is an example of structured observation.

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What is the measure in radians for the central angle of a circle whose radius is 9 cm and intercepted arc length is 7.2 cm

Oksana_A [137]

Answer: 0.8 radians

Step-by-step explanation:

To solve this exercise you must apply the formula shown below:

$S=r\theta$

Where S is the arc lenght, r is the radius of the circle and $\theta$ is the central angle in radians.

Solve for the central angle:

$\theta=\frac{S}{r}$

Now, when you susbtitute the value of the arc length and the radius, you obtain that the central angle is:

$\theta=\frac{7.2cm}{9cm}=0.8radians$

4 0

4 years ago

Read 2 more answers

A straight line inserted at the origin terminates at the point (6, 7) as it sweeps out an angle θ in standard position. Which of

ELEN [110]

Since the line stops at the point (6, 7), then it means that the height of the triangle made is 7 units and the base is 6 units long.
An angle, θ, is made at the line that joins the origin and the point (6, 7).

$tan \theta = \frac{opp}{adj}$
$tan \theta = \frac{height}{base} = \frac{7}{6}$

Hence, $tan \theta = \frac{7}{6}$

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3 years ago

Read 2 more answers

one cup of instant rice makes 1.5 of cooked rice. How many cups of cooked rice will 3 cups of instant rice make

Vadim26 [7]

Answer:4.5

Step-by-step explanation:

1.5 x 3

7 0

3 years ago

Read 2 more answers

A university class has 29 students: 11 are nursing majors, 9 are psychology majors, and 9 are art majors. The professor is plann

babymother [125]

Answer:

0.089

Step-by-step explanation:

Since there are 9 art majors, the probability of the first student being chosen is 9 out of the 29 students total. The second student is being chosen from a sample of 28 students and 8 art majors.

9/29=.31

8/28= .286

.31 x .286=0.089

3 0

3 years ago

Consider the following game: Roll a fair 6-sided die. You win if the result is greater than 4; otherwise, you lose. To play, you

dalvyx [7]

Answer:

-$1.33 or lose $1.33

Step-by-step explanation:

In this game, there are two possible outcomes.

- There is a 2 in 6 chance (rolling a 5 or a 6) that you win $8.

- There is a 4 in 6 chance (rolling a 1, 2, 3 or a 4) that you win nothing.

Note that for any outcome, you start off paying $4 to play.

The expected value of this game is:

$E(X) =\frac{2}{6} *\$8+\frac{4}{6}*\$0-\$4\\E(X) = -\$1.33$

You are expected to lose $1.33 per play.

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3 years ago