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cluponka [151]
3 years ago
13

Which is an example of an experiment? A. Testing the effectiveness of a new hair product by allowing one group to use it and com

paring results against a group that doesn't use it B. Collecting the cholesterol readings of a group of individuals of a certain age group in a small town C. Calling a sample of registered voters before an election to find out what issues concern them most D. Finding out the number of monthly burglaries of a residential neighborhood for a statistical study for the police
Mathematics
2 answers:
ycow [4]3 years ago
4 0

Answer:

A IS THE ANSWEERRRRRR

Step-by-step explanation:

Bezzdna [24]3 years ago
3 0
A is the answer cause u are testing and comparing
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Somebody please help me with this question
denis23 [38]

Answer:

c is the correct answer

Step-by-step explanation:

3 0
2 years ago
A ramp to a building has a height of 4 feet and the angle of elevation is 33 defrees. How long is the ramp?
sladkih [1.3K]
Height=4 ft
angle=33 degrees
My tip first is to draw it out. Draw an acute angle opening up to a building forming a triangle. Inside of the vertex of the acute angle is the degree 33 and the height of the building is 4 ft. So, use trig! Do you have a calculator? Opposite over hypotenuse is Sine. (SOH CAH TOA). (4)/(sin(33)). which equals 7.34 ft as your height! Hope this helped!
5 0
2 years ago
Ill mark brainlist plss
Harlamova29_29 [7]

Answer:

6/12

Step-by-step explanation:

the last one

4/8=6/12!!

6 0
2 years ago
Read 2 more answers
Kiran has 10 1/2 feet of lumber and wants to make a bookshelfKiran needs two side panels that are each 5 2/3 feet. How much more
eimsori [14]

Total height of lumber, H = 10 1/2 feet = 21/2 feet .

Height of side panel, h = 5 2/3 feet = 17/3 feet .

Now,

Extra lumber required, L = 2 × Height of side panel - Total height of lumber

L=[2\times (\dfrac{17}{3})]-\dfrac{21}{2}\\\\L = \dfrac{5}{6}\ feet

Therefore, extra lumber required is \dfrac{5}{6} feet.

Hence, this is the required solution.

4 0
3 years ago
Automobile license plates in Massachusetts usually consist of three digits followed by three letters. The first digit is never z
Serga [27]

Answer:

1,58,18,400

Step-by-step explanation:

1st digit can have the values 1-9 (9 distinct values)

2nd digit can have the values 0-9 (10 distinct values)

3rd digit can have the values 0-9 (10 distinct values)

1st letter can have the value A-Z (26 distinct values)

2nd letter can have the value A-Z (26 distinct values)

3rd letter can have the value A-Z (26 distinct values)

Total number of different plates possible = 9*10*10*26*26*26

=1,58,18,400

3 0
2 years ago
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