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Vesna [10]
2 years ago
9

Decide whether the following scenario is an observational,

Mathematics
1 answer:
VMariaS [17]2 years ago
4 0

The scenario is an observational study, done by the teacher.

The correct option is (B)

<h3>What is Observational study?</h3>

Firstly,  A type of study in which individuals are observed or certain outcomes are measured. No attempt is made to affect the outcome.

Survey is defined as the act of examining a process or questioning a selected sample of individuals to obtain data about a service, product, or process.

Experimental research, also called experimentation, is research conducted using a scientific approach using two or more variables.

If we look at the question, the teacher was trying to do the observational study. By observing the students answer.

Learn more about Observational Study here:

brainly.com/question/15938198

#SPJ1

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A geologist has two rocks on a scale that weighs 2 1/2 pounds together rock A was 1/7 of the total weight. How much did rock A w
jarptica [38.1K]
5/14 is the answer. I'll do my best bud
Answer↑

Steps↓
Convert 2 1/2 to an improper fraction:
2 + 2+ 1 over 2

Once you add the numbers, that will be 5/2.

Now, multiply that with 1/7:
5/2 • 1/7

Your answer will be 5/14

Therefore, Rock A weighs 5/14 pounds
7 0
3 years ago
Maria practice the piano 5/6 of an hour everyday. How many hours does she practice in 4 days
S_A_V [24]
Answer:
10/3 hours

Explanation:
If Maria practices 5/6 hours a day, then she practices (5/6)(4) hours in 4 days.

(5/6)(4)=20/6

20/6 can be simplified to 10/3 hours.

I hope this helps!
3 0
3 years ago
What is the difference
azamat

Answer:

4

Step-by-step explanation:

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3 years ago
Find the slope of the lines shown in the graph
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6 0
3 years ago
A ball is thrown straight up with a speed of 12 meters per second near the surface of Earth. What is the maximum height reached
Elena-2011 [213]

Answer:

maximum height =7.347m

Step-by-step explanation:

maximum height = (U²sin²θ)/2g

where θ = 90° as the ball is thrown straight up.

sin90°=1 , so our formula reduces to;

H= U²/2g

U=12m/s  , g=9.8m/s²

H= 12²/(2*9.8)

H=7.347m

6 0
3 years ago
Read 2 more answers
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