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joja [24]
3 years ago
12

A teacher asks students to list the math lessons they learned on nine random school days in the past month. She evaluates the st

udents’ performance on this assignment to get a general picture of how well students are taking notes. This teacher’s method is an example of?
A. systematic random sampling
B. Simple random sampling
C. Convenience sampling
D. Stratified sampling
Mathematics
1 answer:
N76 [4]3 years ago
8 0
<span>Hope this helps: C. Convenience sampling</span>
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shutvik [7]
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The city would like to install a concrete walkway between the soccer field and
alexandr1967 [171]

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i looked up the whole question and this popped up

pay between $6 and $12 persquarw foot

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one tube of maybelline great lash mascara is sold every 2.7 seconds. how many tubes are sold in a half of a day. round to the ne
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3 0
3 years ago
Solve -19 - m = 8 + 8m
Drupady [299]

Answer:

m = -3

Step-by-step explanation:

−m − 19 = 8m + 8  (Simplify equation)

−9m − 19 = 8  (Subtract 8m from both sides)

−9m = 27  (Add 19 to both sides)

m = -3 (Divide both sides by -9)

5 0
3 years ago
A construction company can remove 5 1/4 metric tons of dirt from a construction site in 4 1/2 hours what is the unit rate in met
photoshop1234 [79]

Answer:

unit\ rate=1.16\ tons\ per\ hour

Step-by-step explanation:

Hello , I can help you with this

remember how to convert mixed numbers to decimal numbers

a\frac{b}{c}=\frac{(a*c)+b}{c}

Step one

convert into decimal numbers

5\frac{1}{4}\ metric\ tons= \frac{(5*4)+1}{4}\ metric\ tons=\frac{21}{4}metric\ tons=5.25\ metric\ tons\\4\frac{1}{2}\ hours=\frac{(4*2)+1}{2}\ hours=\frac{9}{2}\ hours=4.5\ hours

Step two

the unit rate in metric tons per hour is given by:

unit\ rate=\frac{number\ of\ tons}{number\ of\ hours} \\

put the values into the equation

Let

tons=5.25 metric tons

hours=4.5 hours

unit\ rate=\frac{5.25\ tons}{4.5\ hours}\\unit\ rate=1.16\ tons\ per\ hour

Have a good day

5 0
3 years ago
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