Answer:
The variable that is being predicted is the <u>dependent variable</u>.
Step-by-step explanation:
The regression analysis is used to determine the effect on the response or dependent variable with every one unit change in the predictor or independent variable.
In case of simple linear regression there is only one independent variable and in cases of multiple linear regression there are more than one independent variables.
The general form of simple linear regression is:
The general form of multiple linear regression is:
The dependent variable are usually denoted by the letter "<em>y</em>" and the independent variables are usually denoted by the letter "<em>x</em>".
Thus, the variable that is being predicted is the <u>dependent variable</u>.
<u>the elevator is on 7th floor. </u>
Answer:
Solutions given:
street level increases when goes up and decreases when goes down.
from street level
0+10-3=7
the elevator is on 7th floor.
Answer:
x² + 1
or if we suppose
x² + 1 = 0 the n we get value of x
x = ±1
Step-by-step explanation:
x²+x/x (cancel out both x/x we get)
x² + 1
Let suppose
x²+x/x = 0
x² + 1 =0
x²=-1
taking square root on both side we get
x = ±1
:)
Answer:
150.83 (cm²).
Step-by-step explanation:
1) the area of the bottom and top is: A₁=π*r²*2=2*3.1415*4≈25.13 (cm²);
2) the length of the circle in the bottom/top side is: l=2*π*r=2*3.1415*8≈12.57 (cm);
3) the area of the side surface of the cylinder is: A₂=l*h=12.57*10=125.7 (cm²);
4) the required area of the cylinder is:
A=A₁+A₂=25.13+125.7=150.83 (cm²).
The two operations are multiplication and subtraction.
The constants are 2 and 6.
The expression is written as 2(n – 6).
Explanation: "twice the difference" meaning two times an expression. The two operations here are multiplication and subtraction because there is a parenthesis and there is a "-" sign within the parenthesis. 2 and 6 are constant numbers.