The factors that are needed to be controlled are :
1. the date of manufacturing of the drug should be the same
2. the amount of drug should be the same
3. the time they will take the drug should be the same
4. the food they are taking should be the same
5. the activities they are doing should be the same
Answer:
<h2>B. 6</h2>
Step-by-step explanation:
![\text{use}\\\\a^{-n}=\dfrac{1}{a^n}\\\\==========================\\\\b^{-3}=\dfrac{1}{216}\\\\\dfrac{1}{b^3}=\dfrac{1}{216}\qquad\text{inverse both sides}\\\\b^2=216\to b=\sqrt[3]{216}\\\\b=6\ \text{because}\ 6^3=216](https://tex.z-dn.net/?f=%5Ctext%7Buse%7D%5C%5C%5C%5Ca%5E%7B-n%7D%3D%5Cdfrac%7B1%7D%7Ba%5En%7D%5C%5C%5C%5C%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%5C%5C%5C%5Cb%5E%7B-3%7D%3D%5Cdfrac%7B1%7D%7B216%7D%5C%5C%5C%5C%5Cdfrac%7B1%7D%7Bb%5E3%7D%3D%5Cdfrac%7B1%7D%7B216%7D%5Cqquad%5Ctext%7Binverse%20both%20sides%7D%5C%5C%5C%5Cb%5E2%3D216%5Cto%20b%3D%5Csqrt%5B3%5D%7B216%7D%5C%5C%5C%5Cb%3D6%5C%20%5Ctext%7Bbecause%7D%5C%206%5E3%3D216)
Answer:
(3,0)
Step-by-step explanation:
The <u>solution</u> of a system of equations is <u>where they meet on a graph.</u>
The two order pairs meet at (3,0)
Answer:
f(2) = 12
f(x) = 7, x = -3, 1
Step-by-step explanation:
<u>a)</u>
plug in x as 2
f(x) = 2^2 + 2(2) + 4
f(x) = 4 + 4 + 4
f(x) = 12
<u>b)</u>
replace f(x) with 7
7 = x^2 + 2x + 4
x^2 + 2x - 3 (move 7 to other side)
Factor
ac: -3x^2
b: 2x
split b into 3x, -x
(x^2 -x) + (3x - 3)
↓ ↓
x(x-1) + 3(x-1)
Factor: (x-1)(x+3) = 0
Solve using Zero Product Property:
x - 1 = 0, x + 3 = 0
x = 1, x = -3
Answer:
24
Step-by-step explanation:
:) im in 8th do i already know this stuff
