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Over [174]
3 years ago
9

Mrs. Torres wants to know how many students wear thelr uniforms. In order to gather data, she stands by the front door and recor

ds each student. Identify the data-gathering technique described above:
A. Observational Study
B. Randomized Experiment
C. Survey
D. All of the above​
Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
5 0

Answer:

Observational Study

Step-by-step explanation:

Because she stands by the front door and records each student

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3 years ago
Who made an error? <br> The correct scale factor= ?
Ostrovityanka [42]

Answer:

reggie made an error

the correct scale factor is 2/3

Step-by-step explanation:

we want to get from A to A', B to B', and ultimately C to C'

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let's start out with reggie's scale factor. he multiplies each value in C by 3/2 to get to C'. we can try this out with one point, e.g. A

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now, onto hillary's scale factor of 2/3

for A: 2/3 * (-12, -6) = (-8, -4). this is A'! thus, hillary is correct and reggie made an error

the correct scale factor is thus hillary's: 2/3

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2 years ago
Which of the following lists does not include all the factors of the number?
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The Answer is 21 because 7 and 3 can go in it as well
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