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miv72 [106K]
3 years ago
5

A study of a new medication found that patients who took the medicine have reduced blood pressure, compared to those who did not

take the medicine. The research team
concluded that the medicine caused the reduction in blood pressure. Which study design did they most likely use?
Mathematics
1 answer:
stellarik [79]3 years ago
8 0

Answer:

They most likely used an experiment with patients randomly assigned to take the medicine or not take the medicine

Step-by-step explanation:

I got it correct on my test for sure!

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5 0
3 years ago
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The value of 2 to the 3rd power + 3 to the 3 power = ___.
Arturiano [62]
35.

2*2= 4*2=8

3*3=9*3=27

27+8=35

So the answer is 35. Hope this helps
3 0
3 years ago
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avanturin [10]
It should be 44 if it goes up to 1,10. If it is 1,5 it should end up as 44 As well. Sorry if I’m wrong. Please do not attack me.
4 0
3 years ago
Use the Quadratic Formula to solve x2 + 20x + 98 = 0
Lubov Fominskaja [6]
ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\if\ \Delta \ \textless \  0\ then\ no\ solution\\\\if\ \Delta =0\ then\ one\ solution\ x_0=\dfrac{-b}{2a}\\\\if\ \Delta \ \textgreater \  0\ then\ two\ solutions\ x_1=\dfrac{-b-\sqrt\Delta}{2a}\ and\ x_2=\dfrac{-b+\sqrt\Delta}{2a}\\-----------------------------

x^2+20x+98=0\\a=1;\ b=20;\ c=98\\\\\Delta=20^2-4\cdot1\cdot98=400-392=8 \ \textgreater \  0\\\sqrt\Delta=\sqrt8=\sqrt{4\cdot2}=\sqrt4\cdot\sqrt2=2\sqrt2\\\\x_1=\dfrac{-20-2\sqrt2}{2\cdot1}=\dfrac{-20-2\sqrt2}{2}=-10-\sqrt2\\\\x_2=\dfrac{-20+2\sqrt2}{2\cdot1}=\dfrac{-20+2\sqrt2}{2}=-10+\sqrt2
3 0
3 years ago
(115) the product of integers x, y, and z is even. is z even?
djyliett [7]
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if x = 6, y = 3, then z = 2, even

<span>2. Z=XY </span>

so (z)^2 = 2*k (because x*y*z = 2k, where k is an integer)

<span>Sufficient, as if square of an integer is even ,then the integer is even</span>
5 0
4 years ago
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