Answer:
10 years.
Step-by-step explanation:
Let Jerome, Keenan, and Leitha have ages of x,y and z respectively,.
Then given that x+y =18 ... i
x+z =19 ... ii
y+z = 21 ... iii
From the above information we are to find out y and i.e.Keenan age.
Add all the 3 equations
Left side becomes x+y+y+z+z+x = 2(x+y+z)
and right side becomes = 18+19+21 = 58
In other words, 2(x+y+z) = 58
Divide by 2
x+y+z =29 ... iv
From the equation iv subtract ii
x+z =19
We get y = 10
Hence Kennan age = 10 years
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.
Answer:
B
Step-by-step explanation:
it's more like 10 points
Answer:
Mabey 102 try that.
Step-by-step explanation:
Hope this helps!
Answer:
⅘ or 0.8
Step-by-step explanation:
Hypotenuse² = 3² + 4²
Hypotenuse = 5
Sin(θ) = 4/5