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Natali [406]
4 years ago
10

Please check if this is correct. I KNOW IT ISNT TELL ME MY MISTAKES. Attacment below.

Mathematics
1 answer:
vichka [17]4 years ago
3 0
The correct answer to A is true

everything else looks okay to me.. 

I don't know if you are right for the rest since I multiplied and didn't get any of them XD so I'm going to trust you on that. Maybe you should double- check just to be sure though.
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Researchers at a medical school conducted a study to test the effectiveness of a new drug for lowering cholesterol. The 52 subje
Drupady [299]

Answer:

1. An Experimental

2. Dependent

3. Independent

Step-by-step explanation:

Considering the description of how the research was carried out, it can be concluded that This study is an example of AN EXPERIMENTAL study. This because the researcher is trying to study the effectiveness of a new drug for lowering cholesterol

The difference in cholesterol level is the DEPENDENT variable. This is because the difference in cholesterol level is what the researcher wants to determine.

The treatment with a drug or placebo is the INDEPENDENT variable. This is because this is what the researcher manipulates to determine the difference in cholesterol level which is the dependent variable in this experimental study.

4 0
3 years ago
Which equation could be used to find the height of the flagpole?
Andrew [12]
Given a fragpole which makes a right angle with the point of observation with the angle of elevation as 50°.

Let x be the height of the flagpole, then

\sin50^o= \frac{x}{5}

Therefore, the <span>equation that could be used to find the height of the flagpole is
</span><span>x/5 = sin 50</span>
6 0
3 years ago
Find the exact value tan^-1(tan(3pi))
bearhunter [10]
The answer is 0
(According to the radical stuffs)
6 0
3 years ago
A ratio equivalent to 2:5 is 2 :10
azamat
False... a ratio equivalent to 2:5 is 4:10

2/5 × 2/2 = 4/10
8 0
3 years ago
PLEASE HELP ASAP 25 PTS + BRAINLIEST TO RIGHT/BEST ANSWER
mash [69]

Answer:

(-6,9,-3)

Step-by-step explanation:

-3x -y +z=6

-3x-y+3z =0

x-3z =3

Multiply the second equation by -1

-1 *(-3x-y+3z) =0*-1

3x +y -3z =0

Add this to the first equation

-3x -y +z=6

3x +y -3z =0

----------------------

0 + 0 + -2z = 6

Divide by -2

-2z/-2 = 6/-2

z = 6/-2

z=-3


Take the third equation to find x

x-3z=3

x-3(-3) = 3

x+9=3

Subtract 9 from each side

x+9-9 =3-9

x=-6

Now we need to find y

3x +y -3z =0

3(-6) +y -3(-3) =0

-18 +y +9=0

-9+y =0

Add 9 to each side

-9+9+y = 0+9

y=9

(-6,9,-3)

3 0
3 years ago
Read 2 more answers
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