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cluponka [151]
4 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]4 years ago
4 0

Answer:

A IS THE ANSWEERRRRRR

Step-by-step explanation:

Bezzdna [24]4 years ago
3 0
A is the answer cause u are testing and comparing
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Slope of (8,1) and (8,2)
mr_godi [17]
It is a undefined slope
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3 years ago
Will give brilliant
umka21 [38]

Answer:

(6, 4)

Step-by-step explanation:

R(2,4)=(2+4, 4)=(6, 4)

3 0
3 years ago
Read 2 more answers
The product of a three times a number and 7 is 63. find the number
just olya [345]
Set it up algebraically

3 times a number so 3x where x = the mystery number

times 7 so 3x*7

and it equals 63 so,

3x*7=63

this can be further simplified to

21x=63

then just divide both side by 21 to get your answer

(21/21)x=(63/21)

so x=3

8 0
3 years ago
Help please. thank u :)
Sveta_85 [38]

Answer:

help

Step-by-step explanation:

5 0
4 years ago
Please help me to solve the question. (chapter angle between two lines)​
dsp73

Answer:    \bold{x^2-\dfrac{181}{13}xy+12y^2=0}

<u>Step-by-step explanation:</u>

\tan \theta =\dfrac{y}{x}\quad \longrightarrow \theta=\tan ^{-1}\bigg(\dfrac{y}{x}\bigg)

\text{Given:}\quad \theta =\tan^{-1}\bigg(\dfrac{1}{13}\bigg)\quad \longrightarrow x=13,y=1

Insert x = 13 and y = 1:

x² + 2hxy + 12y² = 0

(13)² + 2(13)(1) + 12(1)² = 0

169 + 26h + 12 = 0

       26h + 181 = 0

                26h = -181

                    h=-\dfrac{181}{26}

\text{Insert:}\ h=-\dfrac{181}{26}

x^2 + 2\bigg(-\dfrac{181}{26}\bigg) xy + 12y^2 = 0

\bold{x^2 -\bigg(\dfrac{181}{13}\bigg) xy + 12y^2 = 0}

8 0
3 years ago
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