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2 years ago

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

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Draw a rectangular fraction model to explain your thinking. Then, write a multiplication sentence. A. 2 3 of = 3 5

myrzilka [38]

Answer:

$\frac{2}{3}\ of\ \frac{3}{5} = \frac{2}{5}$

Step-by-step explanation:

Given

$\frac{2}{3}\ of\ \frac{3}{5}$

Solving (a): Multiplication sentence

$\frac{2}{3}\ of\ \frac{3}{5}$

Rewrite of as *

$\frac{2}{3}\ of\ \frac{3}{5} = \frac{2}{3}\ *\ \frac{3}{5}$

Solve

$\frac{2}{3}\ of\ \frac{3}{5} = \frac{2}{5}$

Hence, the multiplication sentence is:

$\frac{2}{3}\ of\ \frac{3}{5} = \frac{2}{5}$

Solving (b): Rectangular fraction model

In (a) above, the result is 2/5

The fraction model will be represented as thus:

Draw a rectangle
Partition in to 5 equal parts (5 represents the denominator)
Shade 2 of the 5 partitions (2 represents the numerator)

<em>See attachment for model</em>

5 0

3 years ago

How to solve this equation and I need the answer.

lukranit [14]

Answer:

using the y intercept formula

6 0

3 years ago

Don has an album that holds 900 hockey cards. Each page of the album holds 9 hockey cards. If 68% of the album is empty, how m

nikitadnepr [17]

Since there are 9 hockey cards per page and it holds 900 hockey cards you can multiply 9 by 68 to get the total of 612 hockey cards. Then take 900 and subtract 612 from it and you should get 288 hockey cards in the album. Then divide that number by 9 to get the total number of pages filled 288/9=32 pages filled

3 0

3 years ago

Read 2 more answers

Does the point (–9, 8) satisfy the equation y = –x + 1?

Darina [25.2K]

Answer:

1. 3x+3y=9 since it is a coinciding line.It is equivalent because all the terms are multiplied by 3 from the original equation.

2. x-4=3x+4

x=3x+8

-2x=8

x=-4

y=-4-4

y=-8

please mark me brainlyest <i cant spell it i think i spelled it wrong lol >

8 0

2 years ago

Given f(x) = 4(1 – x), what is the value of f(-10)

Lubov Fominskaja [6]

Answer:

Step-by-step explanation:

The function formula is given as

f(x) = 4(1 – x)

To find the f(-10) we will substitute into the function formula, then we have

f(-10)= 4[1-(-10)]

=4[11]

=44

Hence, the value of f(-10)= 44

8 0

3 years ago